Welcome to Las Trampas24

680

WALNUT

CREEKLAFAYETTE

ALAMO

DANVILLE

SANRAMON

DUBLINCASTROVALLEY

Crow

North Gate Road

Canyon

Road

Sycamore

Valley Road

Diablo Blackhawk

Road

San Ramon Vly Bl

Road

Canyon

Canyon Road

El Cerro Bl.

MorganDrive

Stone Valley Road

Lake Chabot

St. M

ary’s

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d

Dougherty Road

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Bollinger

Norris

Redwood Rd.

Cull Canyon Road

Road

Camino Tassajara

Holbrook Dr.

Iron Horse Regional Trail

Black Diamond- To-Mt. Diablo Regional Trail

Regional Trail

Bay

Area

Ridge Trail

Green Valley Regional Trail

Las Trampas-

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iablo

Regional Trail

Brione

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Bishop Ranch Regional Open Space Preserve

SycamoreValley Regional Open Space Preserve

Las Trampas Regional Wilderness

Cull Canyon Regional Rec. Area

LakeChabot

AnthonyChabot

CastleRock

DiabloFoothillsRegional Park Lafayette-

MoragaRegional Trail

Dublin Hills Regional Park

Mt.DiabloStatePark

0 2.5 Mi.

North

THE RANCH AT LITTLE HILLS is a 100-acre picnic park located adjacent to Las Trampas Regional Wilderness on Bollinger Canyon Road. The facility is available for group picnics by reservation only. Call (925) 837-8158 for information, or see bookyourpic-nic.com.LAS TRAMPAS STABLES offers western horse-back riding lessons for adults and children older than age 8. With access to miles of horseback riding trails in Las Trampas and the adjoining EBMUD watershed (permit required), it is ideally situated for those who wish to explore the park on horseback. For more information, call 925-855-1570.PRE-PARKLAND HISTORY The Tatcan, one of six Bay Miwok-speaking tribes, inhabited the hill lands and valleys in the place now known as the central East Bay Hills along the San Ramon Creek drainage. They managed the land using specialized horticultural tech-niques that enhanced the numbers and health of the plants and animals on which they relied, including deer, elk, and antelope, and likely trout and steelhead. Bay Miwoks continue to live in the Bay Area and are active in the protection of local ancestral cultural sites.

The first Mexican land grant in the area was the 8,000-acre Rancho San Ramon given to Mariano Castro and Bartolome Pacheco in 1833. It comprised the San Ramon Creek watershed from Crow Canyon Road in northern San Ramon north through Dan-ville and Alamo, including the eastern side of today’s parkland. In 1843, the brothers Jose and Inocencio Romero applied for a 20,000-acre grant that covered today’s Tice Valley and much of Alamo, and included the northern extent of Las Trampas.

In 1855 Joshua Bollinger settled in today’s Bollinger Canyon area, lending the name to geographic and park features. Richard and Kurt Mueller moved to Bollinger Canyon in the 1930s. Richard Mueller expanded an existing house and planted a flower garden and many exotic trees, some of which still grow on the site. Kurt Mueller built his house in the 1930s where the park’s main parking lot is now located. In 1955 the Muellers oversaw construction of Little Hills Ranch, a picnicking facility that originally consisted of a pool, snack stand, and patio. This facility was gradually expanded and is today’s popular The Ranch at Little Hills.

In 1937, one year after receiving the Nobel Prize for Literature, the noted playwright Eugene O’Neill and his wife Carlotta Monterey built Tao House, a home on the lower eastern slopes of Las Trampas Ridge at the eastern boundary of today’s preserve. The Tao House served as the O’Neill family residence until 1944. While there, O’Neill wrote some of his

most acclaimed works, including “Long Day’s Journey into Night” and “The Iceman Cometh.” The house was pre-served by the District and is operated as a National Historic Site by the National Park Service.

In 1957, Bollinger Canyon Road was paved by the U.S. Army to construct NIKE Missile Battery 25. The Army also built a road up to Rocky Ridge – today’s Rocky Ridge View Trail – to provide ac-cess to a radar facility. The NIKE facility has been closed since 1959.GROWING A PARKLAND Las Trampas Regional Wilderness had its beginnings in the 1964 passage of a state bond that provided funding to counties and local jurisdictions for parkland de-velopment. The Contra Costa Board of Supervisors designated “Bollinger Can-yon” as a future park, and a 2,000-acre park was envisioned by the Park District to include hiking, riding, and primitive

camping. The Park District began acquisition of private properties for the wilderness area in 1966.GEOLOGY Las Trampas is known for its geologic and paleontologic resources as well as its underground aquifers and springs. Two major Bay Area faults – the Las Trampas and Bollinger faults – account for the up-lift and exposure of well-defined geological formations.

Two ridges – Rocky Ridge averaging about 2,000 feet above sea level, and Las Trampas Ridge about 1,600 feet above sea level – represent the floors of ancient

seas that once covered most of the present area of the Coast Ranges. Among the most interesting of the an-cient sea-floor rocks are the huge cliff-hogbacks along the western slope of Rocky Ridge. They consist of the Briones Formation sandstones and are believed to be the ancient floor of shallow, irregular bays and straits where millions of years of sediment had accumulated. On the western side of Las Trampas Ridge the forma-tion is seen as flat-faced tilted beds or bulging walls.

Some of the youngest rocks in the park are Mul-holland Formation sediments thought to be under six million years old. The oldest rocks in the area consist of marine sandstone, conglomerate and shale thought to be about 135 million years old. These occur outside the south boundary of the park and west of Rocky Ridge.PALEONTOLOGY Fossil deposits at Las Trampas represent a fauna that is thought to be about ten million years old. One of the more interesting finds were two complete lower jaws of an ancient elephant known as Gomphotherium, found just northwest of the present boundaries of the park. The most common remains found in the vicinity of the park are teeth from an ex-

POLICE, FIRE, MEDICAL EMERGENCY ..................9-1-1 EBRPD HEADQUARTERS .......................1-888-327-2757 CAMPING RESERVATIONS ..... 1-888-327-2757, option 2PARK OFFICE ........... 1-888-327-2757, option 3, ext. 4537 TRS RELAY FOR HEARING IMPAIRED .....................711

East Bay Regional Park District2950 Peralta Oaks Court, Oakland, CA 94605-0381 1-888-327-2757 (1-888-EBPARKS) www.ebparks.org Rev. 8/18

18012 Bollinger Canyon Road San Ramon, CA 94583

TO REACH LAS TRAMPASFrom I-580 in Castro Valley, take Crow Canyon Road north to Bollinger Canyon Road. Turn left and follow Bollinger Canyon Road into the park. From I-680 in San Ramon, take Crow Canyon Road west to Bollinger Canyon Road. Turn right and follow Bollinger Canyon Road into the park. To reach the Ringtail Cat trailhead (limited parking; no horsetrail-ers allowed) exit I-680 at Stone Valley Road in Alamo and go west. Turn left (south) on Danville Boulevard and go for about 0.71 miles to Hemme Avenue. The staging area is about one-half mile ahead, at the end of the road.

Las TrampasRegional WildernessLafayette, Walnut Creek, Alamo, Danville, San Ramon

WELCOME! Please enjoy your Regional Parks safely, and help us protect and preserve your parklands by com-plying with park rules and regulations.SAFETY and ETIQUETTE• Stay on trails. Taking shortcuts can be dangerous and causes erosion. • Wading and/or swimming in undesignated areas may be dangerous and may harm the water shed.• Carry and drink plenty of water. Dehydration is a leading cause of injuries on the trail. • Be prepared for sudden changes in the weather. • Trails can be slippery, rocky and steep. Proceed carefully at your own risk. • Wildlife may be present on the trails at any time. Feeding or approaching wildlife is dangerous and illegal.• Bicycles are permitted on designated trails only.• Horses have the right-of-way on trails. RULESDogs must be leashed 200 feet from any trail or park entrance. Dogs must be leashed in parking lots, picnic areas, developed areas such as lawns and play fields, and on some trails. They must be under voice control at all times.Visitors are responsible for knowing and com-plying with park rules (Ordinance 38). See www.ebparks.org/rules.

Year opened: 1966 Acres: 5,593Highlights: hiking, biking, horseback riding, reserv-able group camping area, birdwatching, wildflowers in season, The Ranch at Little Hills (swimming, picnicking), Las Trampas Stables (horse riding and boarding).Fun Facts: • Eugene O’Neill wrote several plays while living in the Tao House. O’Neill inspired the name Corduroy Hills, saying the long, dry grass on the hills was like corduroy.

tinct three-toed horse. Remains of ancient camels, small squirrels, toads, and the honey badger have also been found, along with a variety of fossilized marine clams.VEGETATION The dominant woodland vegetation on the western and southern exposures of Las Trampas and Rocky ridges is black sage, chamise, and buck brush, in-terspersed with toyon, manzanita, elderberry, gooseber-ry, chaparral, monkeyflower, coyote bush, hollyleaf red berry, deer weed, and dozens of other species. There are some creek dogwood along Bollinger Creek. Please beware of poison oak, a shrubby or bushy plant with oak-like glossy green or reddish leaves that occurs in threes and that can cause a long-lasting, itchy rash if the oils come in contact with skin, clothing, shoes, or pets.

Tree species include coast live oak, bay laurel, buck- eye, big leaf maple, canyon live oak, black oak, and scrub oak. The latter, with its mistletoe, prefers the ridgetop habitat at the end of Chamise Trail. Half a dozen fern species are found in the park.ANIMALS The park’s extensive and isolated wilder-ness provides habitat for much wildlife, including deer, raccoons, foxes, coyotes, opossums, bobcats, skunks, and squirrels. Chaparral habitat suitable for the Alameda whipsnake, a species listed as threatened by the State of California, encompasses a large part of the parkland. Be wary of rattlesnakes in the warmer months. If you see a rattlesnake, do not approach or harass it.

The park is a good place for birdwatching. There are many species of hawks, and golden eagles are occasionally sighted.

The Park District leases some areas for cattle graz-ing. Cattle keep the grass height down, which reduces the fire hazard during the dry season.

Spend an entire day hiking the Rocky Ridge and the Devil’s Hole area.

Las Trampas Regional Wilderness, one of the East Bay Regional Park District’s largest parklands, is a 5,342-acre wilderness preserve that lies on the western edge of the San Ramon Valley. Its dramatic landscape, commanding views, and relatively undisturbed natural environment are key attractions that make this park-land special.

Trail-oriented recreational activities are the dom-inant attractions of the wilderness. The 40-mile trail network provides access to Las Trampas Ridge and Rocky Ridge – the preserve’s two main ridges – pro-viding an unmatched recreational experience for hik-ers, mountain bikers, and horseback riders. More than half the trails are single-track routes that challenge the ardent trail user while enhancing the solitude of a wilderness setting.

The park is bisected by Bollinger Creek. To the west is Rocky Ridge, accessible from the main parking lot via a paved road that brings hikers near the 2,024-foot summit. At the 1,760-foot elevation you can hike westward along a trail managed by the East Bay Mu-nicipal Utility District to the Valle Vista Staging Area on Canyon Road in Moraga, or south to the Chabot staging area in Castro Valley. A permit is required to transit EBMUD lands: see www.ebmud.com.

Las Trampas Ridge is accessible via the Chamise and Bollinger Creek Loop trails. The view from the ridge affords vistas of the surrounding valleys, Mt. Di-ablo, and other points of interest. The Corduroy Hills Trail, skirting Eagle Peak, is for hiking only, as are the Sycamore, Mahogany, and Trapline trails.

A rehabilitated golden eagle released into Las Trampas in 2012. Golden eagles hunt for small mammals like black-tailed jackrabbits and California ground squirrels in the grasslands of Las Trampas.

This diseño (sketch-map) describes the proposed boundaries of the Rancho San Ramon – the area granted to Mariano Castro and Bartomole Pacheco in 1834. Mount Diablo is bottom, center. The creek to the left, or south end (north is to the right), is in Bollinger Canyon. Today’s Las Trampas Regional Wilderness is in the center of the map. Map courtesy Museum of the San Ramon Valley.

Welcome to Las Trampas24

680

WAL

NUT

CREE

K LAFAYETTE

ALAMO

DANVILLE

SANRAMON

DUBLINCASTROVALLEY

Crow

North Gate R

oad

CanyonRoad

Sycamore

Valley Road

DiabloBlackhawk

Road

San R

amon

Vly B

l

Road

Cany

on

Canyon Road

El Cerro Bl.

MorganDrive

Stone Valley Road

Lake C

habot

St. Mary’s Road

Doug

herty

Roa

d

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Bollinger

Norris

Redw

ood

Rd.

Cull

Cany

on R

oad

Road

Camino Tassajara

Holbrook Dr.

Iron

Hors

e Re

gion

al Tr

ail

Black Diamond- To-Mt. Diablo Regional Trail

Re

gional Trail

Bay Area

Ridg

e Tr

a il

Green Valley Regional Trail

Las Trampas-

To-Mt. Diablo

Regional Trail

Brione

s-To-Mt.

Dia

blo

Bishop Ranch Regional Open Space Preserve

SycamoreValley Regional Open Space Preserve

Las Trampas Regional Wilderness

Cull Canyon Regional Rec. Area

LakeChabot

AnthonyChabot

CastleRock

DiabloFoothillsRegional Park Lafayette-

MoragaRegional Trail

Dublin Hills Regional Park

Mt.DiabloStatePark

02.5 Mi.

North

THE RANCH AT LITTLE HILLS is a 100-acre picnic park located adjacent to Las Trampas Regional Wilderness on Bollinger Canyon Road. The facility is available for group picnics by reservation only. Call (925) 837-8158 for information, or see bookyourpic-nic.com.LAS TRAMPAS STABLES offers western horse-back riding lessons for adults and children older than age 8. With access to miles of horseback riding trails in Las Trampas and the adjoining EBMUD watershed (permit required), it is ideally situated for those who wish to explore the park on horseback. For more information, call 925-855-1570.PRE-PARKLAND HISTORY The Tatcan, one of six Bay Miwok-speaking tribes, inhabited the hill lands and valleys in the place now known as the central East Bay Hills along the San Ramon Creek drainage. They managed the land using specialized horticultural tech-niques that enhanced the numbers and health of the plants and animals on which they relied, including deer, elk, and antelope, and likely trout and steelhead. Bay Miwoks continue to live in the Bay Area and are active in the protection of local ancestral cultural sites.

The first Mexican land grant in the area was the 8,000-acre Rancho San Ramon given to Mariano Castro and Bartolome Pacheco in 1833. It comprised the San Ramon Creek watershed from Crow Canyon Road in northern San Ramon north through Dan-ville and Alamo, including the eastern side of today’s parkland. In 1843, the brothers Jose and Inocencio Romero applied for a 20,000-acre grant that covered today’s Tice Valley and much of Alamo, and included the northern extent of Las Trampas.

In 1855 Joshua Bollinger settled in today’s Bollinger Canyon area, lending the name to geographic and park features. Richard and Kurt Mueller moved to Bollinger Canyon in the 1930s. Richard Mueller expanded an existing house and planted a flower garden and many exotic trees, some of which still grow on the site. Kurt Mueller built his house in the 1930s where the park’s main parking lot is now located. In 1955 the Muellers oversaw construction of Little Hills Ranch, a picnicking facility that originally consisted of a pool, snack stand, and patio. This facility was gradually expanded and is today’s popular The Ranch at Little Hills.

In 1937, one year after receiving the Nobel Prize for Literature, the noted playwright Eugene O’Neill and his wife Carlotta Monterey built Tao House, a home on the lower eastern slopes of Las Trampas Ridge at the eastern boundary of today’s preserve. The Tao House served as the O’Neill family residence until 1944. While there, O’Neill wrote some of his

most acclaimed works, including “Long Day’s Journey into Night” and “The Iceman Cometh.” The house was pre-served by the District and is operated as a National Historic Site by the National Park Service.

In 1957, Bollinger Canyon Road was paved by the U.S. Army to construct NIKE Missile Battery 25. The Army also built a road up to Rocky Ridge – today’s Rocky Ridge View Trail – to provide ac-cess to a radar facility. The NIKE facility has been closed since 1959.GROWING A PARKLAND Las Trampas Regional Wilderness had its beginnings in the 1964 passage of a state bond that provided funding to counties and local jurisdictions for parkland de-velopment. The Contra Costa Board of Supervisors designated “Bollinger Can-yon” as a future park, and a 2,000-acre park was envisioned by the Park District to include hiking, riding, and primitive

camping. The Park District began acquisition of private properties for the wilderness area in 1966.GEOLOGY Las Trampas is known for its geologic and paleontologic resources as well as its underground aquifers and springs. Two major Bay Area faults – the Las Trampas and Bollinger faults – account for the up-lift and exposure of well-defined geological formations.

Two ridges – Rocky Ridge averaging about 2,000 feet above sea level, and Las Trampas Ridge about 1,600 feet above sea level – represent the floors of ancient

seas that once covered most of the present area of the Coast Ranges. Among the most interesting of the an-cient sea-floor rocks are the huge cliff-hogbacks along the western slope of Rocky Ridge. They consist of the Briones Formation sandstones and are believed to be the ancient floor of shallow, irregular bays and straits where millions of years of sediment had accumulated. On the western side of Las Trampas Ridge the forma-tion is seen as flat-faced tilted beds or bulging walls.

Some of the youngest rocks in the park are Mul-holland Formation sediments thought to be under six million years old. The oldest rocks in the area consist of marine sandstone, conglomerate and shale thought to be about 135 million years old. These occur outside the south boundary of the park and west of Rocky Ridge.PALEONTOLOGY Fossil deposits at Las Trampas represent a fauna that is thought to be about ten million years old. One of the more interesting finds were two complete lower jaws of an ancient elephant known as Gomphotherium, found just northwest of the present boundaries of the park. The most common remains found in the vicinity of the park are teeth from an ex-

POLICE, FIRE, MEDICAL EMERGENCY ..................9-1-1 EBRPD HEADQUARTERS .......................1-888-327-2757 CAMPING RESERVATIONS .....1-888-327-2757, option 2PARK OFFICE ...........1-888-327-2757, option 3, ext. 4537 TRS RELAY FOR HEARING IMPAIRED .....................711

East Bay Regional Park District2950 Peralta Oaks Court, Oakland, CA 94605-0381 1-888-327-2757 (1-888-EBPARKS) www.ebparks.org Rev. 8/18

18012 Bollinger Canyon Road San Ramon, CA 94583

TO REACH LAS TRAMPASFrom I-580 in Castro Valley, take Crow Canyon Road north to Bollinger Canyon Road. Turn left and follow Bollinger Canyon Road into the park. From I-680 in San Ramon, take Crow Canyon Road west to Bollinger Canyon Road. Turn right and follow Bollinger Canyon Road into the park. To reach the Ringtail Cat trailhead (limited parking; no horsetrail-ers allowed) exit I-680 at Stone Valley Road in Alamo and go west. Turn left (south) on Danville Boulevard and go for about 0.71 miles to Hemme Avenue. The staging area is about one-half mile ahead, at the end of the road.

Las TrampasRegional WildernessLafayette, Walnut Creek, Alamo, Danville, San Ramon

WELCOME! Please enjoy your Regional Parks safely, and help us protect and preserve your parklands by com-plying with park rules and regulations.SAFETY and ETIQUETTE• Stay on trails. Taking shortcuts can be dangerous and causes erosion. • Wading and/or swimming in undesignated areas may be dangerous and may harm the water shed.• Carry and drink plenty of water. Dehydration is a leading cause of injuries on the trail. • Be prepared for sudden changes in the weather. • Trails can be slippery, rocky and steep. Proceed carefully at your own risk. • Wildlife may be present on the trails at any time. Feeding or approaching wildlife is dangerous and illegal.• Bicycles are permitted on designated trails only.• Horses have the right-of-way on trails. RULESDogs must be leashed 200 feet from any trail or park entrance. Dogs must be leashed in parking lots, picnic areas, developed areas such as lawns and play fields, and on some trails. They must be under voice control at all times.Visitors are responsible for knowing and com-plying with park rules (Ordinance 38). See www.ebparks.org/rules.

Year opened: 1966 Acres: 5,593Highlights: hiking, biking, horseback riding, reserv-able group camping area, birdwatching, wildflowers in season, The Ranch at Little Hills (swimming, picnicking), Las Trampas Stables (horse riding and boarding).Fun Facts: • Eugene O’Neill wrote several plays while living in the Tao House. O’Neill inspired the name Corduroy Hills, saying the long, dry grass on the hills was like corduroy.

tinct three-toed horse. Remains of ancient camels, small squirrels, toads, and the honey badger have also been found, along with a variety of fossilized marine clams.VEGETATION The dominant woodland vegetation on the western and southern exposures of Las Trampas and Rocky ridges is black sage, chamise, and buck brush, in-terspersed with toyon, manzanita, elderberry, gooseber-ry, chaparral, monkeyflower, coyote bush, hollyleaf red berry, deer weed, and dozens of other species. There are some creek dogwood along Bollinger Creek. Please beware of poison oak, a shrubby or bushy plant with oak-like glossy green or reddish leaves that occurs in threes and that can cause a long-lasting, itchy rash if the oils come in contact with skin, clothing, shoes, or pets.

Tree species include coast live oak, bay laurel, buck- eye, big leaf maple, canyon live oak, black oak, and scrub oak. The latter, with its mistletoe, prefers the ridgetop habitat at the end of Chamise Trail. Half a dozen fern species are found in the park.ANIMALS The park’s extensive and isolated wilder-ness provides habitat for much wildlife, including deer, raccoons, foxes, coyotes, opossums, bobcats, skunks, and squirrels. Chaparral habitat suitable for the Alameda whipsnake, a species listed as threatened by the State of California, encompasses a large part of the parkland. Be wary of rattlesnakes in the warmer months. If you see a rattlesnake, do not approach or harass it.

The park is a good place for birdwatching. There are many species of hawks, and golden eagles are occasionally sighted.

The Park District leases some areas for cattle graz-ing. Cattle keep the grass height down, which reduces the fire hazard during the dry season.

Spend an entire day hiking the Rocky Ridge and the Devil’s Hole area.

Las Trampas Regional Wilderness, one of the East Bay Regional Park District’s largest parklands, is a 5,342-acre wilderness preserve that lies on the western edge of the San Ramon Valley. Its dramatic landscape, commanding views, and relatively undisturbed natural environment are key attractions that make this park-land special.

Trail-oriented recreational activities are the dom-inant attractions of the wilderness. The 40-mile trail network provides access to Las Trampas Ridge and Rocky Ridge – the preserve’s two main ridges – pro-viding an unmatched recreational experience for hik-ers, mountain bikers, and horseback riders. More than half the trails are single-track routes that challenge the ardent trail user while enhancing the solitude of a wilderness setting.

The park is bisected by Bollinger Creek. To the west is Rocky Ridge, accessible from the main parking lot via a paved road that brings hikers near the 2,024-foot summit. At the 1,760-foot elevation you can hike westward along a trail managed by the East Bay Mu-nicipal Utility District to the Valle Vista Staging Area on Canyon Road in Moraga, or south to the Chabot staging area in Castro Valley. A permit is required to transit EBMUD lands: see www.ebmud.com.

Las Trampas Ridge is accessible via the Chamise and Bollinger Creek Loop trails. The view from the ridge affords vistas of the surrounding valleys, Mt. Di-ablo, and other points of interest. The Corduroy Hills Trail, skirting Eagle Peak, is for hiking only, as are the Sycamore, Mahogany, and Trapline trails.

A rehabilitated golden eagle released into Las Trampas in 2012. Golden eagles hunt for small mammals like black-tailed jackrabbits and California ground squirrels in the grasslands of Las Trampas.

This diseño (sketch-map) describes the proposed boundaries of the Rancho San Ramon – the area granted to Mariano Castro and Bartomole Pacheco in 1834. Mount Diablo is bottom, center. The creek to the left, or south end (north is to the right), is in Bollinger Canyon. Today’s Las Trampas Regional Wilderness is in the center of the map. Map courtesy Museum of the San Ramon Valley.

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Bollinger Creek

RINGTAIL CATSTAGINGAREA

Ramage Peak1410

EUGENE O’NEILLNATIONALHISTORIC SITENational Park Servicereservations Required:(925) 838-0249

HAPMAGEERANCH

PARKCity of Danville

PRIVATE ROADNO VEHICLE ACCESSNO PARKINGWALK-IN ONLY

LIMITEDPARKING.NO HORSETRAILERPARKING.

PRIVATE ROAD.STAY ON DESIGNATED TRAIL.

STAGINGAREA

Las Trampas Peak1827

L A S T R A M PA S R I D G E

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PARKOFFICE

LITTLE HILLSPICNIC RANCH

EBMUD SAN LEANDRO WATERSHEDHiking permit required:call (510) 287-0459

To Crow Canyon Roadand I-680.

Vail Peak1787

Eagle Peak1720

CORRALCAMP

To San RamonValley Blvd. and I-680

To Stone Valley Road

Private PropertyNo Trespassing

Private Property – No Trespassing

Private PropertyNo Trespassing

9-1-1Only

A L A M O

D A N V I L L E

LAND BANKAREA CLOSED TO PUBLIC EXCEPT ALONGLAS TRAMPAS RIDGE TRAIL

In order to reduce or prevent the risk of serious head injury or death, state law requires that all bicyclists under age 18 wear an approved helmet while riding on trails and roadways. The district also strongly recommends that all equestrians and bicyclists wear helmets at all times.

MEMBERSHIPSThe Regional Parks Foundation offers Memberships to park users. For information, see www.region-alparksfoundation.org, or call (510) 544-2220.

DRINKING WATER:The park’s water supply is inconsistent and water may be unavailable at any time. Carry plenty of drinking water for yourself, your dog(s), and your horse(s) when visiting the park.

Approximately 8.2 miles from Rocky Ridge Loop Trail to EBMUD Chabot Staging Area and Anthony Chabot Regional Park. EBMUD permitis required.

Approximately 10 milesfrom Rocky Ridge ViewTrail to EBMUD Valle VistaStaging Area. EBMUD permit is required.

Private PropertyNo Trespassing

ELWORTHYSTAGINGAREA

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LAND BANKTHIS AREA CLOSED TO PUBLIC EXCEPT ALONG LAS TRAMPAS RIDGE TRAIL AND FIDDLENECK TRAIL.

LAND BANK

LAND BANK

LAS TRAMPAS REGIONAL WILDERNESS

MADRONE TRAIL

TRAIL

CHA

MISE TRA

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UR SPRINGS

ELDERBERRY TRAIL

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MADRONE

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AMIGO TRAIL

RING

TA

IL CAT TRAIL

CALA

VERAS RIDGE TRAIL

CALAVERAS RIDGE TRAIL

LAS TRA

MPAS RIDGE TRAIL

LAS TRAMPAS RIDGE TR. / CALAVERAS RIDGE TRAIL

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GIL W

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S TRAIL

TRAPLINE T

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LAS TRAMPAS

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GE TRAIL

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UROY H

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BOLLINGER CREEK LOOP TRAIL

BOLLINGER CREEK LOOP TRAIL

LAS TRA

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LOO

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MADRONE TRAIL

LAS

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RO

CKY RIDG

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CUESTA TRAIL

RAMAGE PEAK

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BOLLINGER CREEKLOOP TRAIL

FID

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STAY ON TRAIL!Trail Easement Is Through Private Property

LAS TRAM

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HEMM

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AV.

LA SE

RENA AV.

SOUTH A

V.

STA

RVIE

W D

R.

DELAM

IGO

RD.

CAMILL

E AV.

CAM

ILLE

LANE

WAYNE

AV.

HARTFORD R

D.

EL CERRO RD.

EL P

INTA

DO

RO

AD

DANVILLE BL.

LA GONDA WAY

EL PINTO

EL ALA

MO

BOLLINGER CANYO

N ROAD

REMINGTONLOOP

LIN

DA

MES

A

PROSP

ECT

AV.

HARTZ AV.

CAMINO AM

IGO

CALMAR VISTA ROAD

GLEN ROAD

EL PO

RTAL

RD.

ALAM

O S

PRIN

GS

KUSS ROAD

RAILROA

D AV.

680

DR.

VERONA AV.

REMINGTONDRIVE

LOVE L

N.

680

LAS TRAMPAS ROAD

CAM

INO

RAM

ON

SAN

RAM

ON

VA

LLEY BLV

D.

SYCAMORE VLY.ROAD W.

POD

VA

OCH

O RIO

S DR.

DIABLO ROAD

EL CERRO BLVD.

EL RIO

ROAD

ADOBE DR.

EL ALAMO CT.

EL PINTA

DO

RD

.

ELWORTHY RANCH RD.

ELWORTHY RANCH CIRCLE

680

.41

.38

1.30

.20

.17

.32

1.26

.30

.39

1.67

.15

.37

1.41

.08

.75

.22

.28

.32.03

.15

.69

.15

.29

.83

.18

.22

.17

.19

.73

.10

.53

.21

.51

.47

.48

.45

.44

.38

.15

.28

.14

.22.36

.43

.61.43

.06.15.43

.32

.40

.65

.64

.07.34

.52

.40

.36

.33

.53

2.04

1.34

.28

.32

.68

.49

.12

.27

.73

.23

.36

.27

.26

.38

.34

.18

.19

.28

.10

.31

.22

.11

.17

.32

.30.15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

A B C D FE G H I J K L M N O P Q

North

Paved Multiple Use(Hikers, Horses & Bicycles)

Unpaved Multiple Use(Hikers, Horses & Bicycles)

Hikers and Horses

Hikers Only

Mileage Between Points

Paved Road

Seasonal Stream

Seasonal Pond

Parking

Equestrian Staging

Restroom

Drinking Water

Horse Water

Emergency Phone

Information

Picnic

Reservable Group Camp

Peak

Gate; no access

.12

Contour Interval 40 feet

Rev

. 8/1

8

0 1/2 Mi.1/4 3/81/8