Come Learn About Anoka County Minnesota!!

Learn about the county’s:-Climate-Biome-Soil types-Lakes and Rivers!!-Past glaciers - Present glacial landforms

By Isaiah Norton

The Climate of Anoka county according to the Koppen-Geiger system of climate classification is DFB which is part of the Moist continental climate.

Climates in Anoka County

• D= Snow Climate

• F= Sufficient precipitation in all months

• B= Dry Climates

Precipitation for Anoka county Minnesota. (2009)Lots of

rain!!

Biomes!!

Anoka County is in the Deciduous forest area.

What is a Biome? A biome ismajor biotic community characterized by the dominant forms of plant life and the prevailing climate

Different Biome Regions

Deciduous Forest Biome

Deciduous forest Biome in Anoka Deciduous forest Biome in Anoka

CountyCounty

Soils of Anoka County

The Dominant Soil type in this region are Udalfs which is a sub group of Alifsols.

Udalfs sub group

Alfisol soils are characterized by an argillic horizon produced by illuviation.

Alifsols

Udalfs The area of extreme southeast Minnesota that is dominated by udalfs on ridges contains fertile udolls in the valley floor. In the north udalfs are now covered by large aspen forests. Some of the largest white and red pine were found on these soils.

Anoka county Soil Characteristics! !

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Bedrock Geology of Anoka County!

Ordovician bedrock

-Limestone-Shale -Dolostone-Sandstone

Cambrian Bedrock

Glauconitic Sanstone

Quartzose Sandstone

Anoka County Lakes! -There are 77 named lakes in Anoka County. Thirty-

eight of these lakes are considered of notable significance

General Lake Characteristics-Generally, all lakes within Anoka County are

considered shallow lakes. The average maximum depth of recreational and developed lakes is 16 feet,

although East Twin, our deepest water body, is 68 feet deep.

-The biggest of these lakes is Coon Lake, at 1259 acres. The majority of Anoka lakes are smaller and

shallower, with a median size of 55 acres.

ANOKA COUNTY LAKES

http://www.anokanaturalresources.com/water/lakes/index.htm

Coon Lake is Anoka county’s biggest lake!

East twin is the deepest lake in Anoka county

Anoka County’s rivers and streams!!

-Anoka County has several major waterways, a number of smaller streams, and a multitude of ditches. The Mississippi River borders the county on the southwest.

-The Rum River is located throughout most of Anoka County, it runs from north to south through the western part of the county.

Anoka County Rivers!!

-Mississippi River

-Rum River

Sunrise River

Anoka County is part of the Mississippi/ gulf watershed

Water Sheds of Anoka County!!

A watershed is an area of land that catches water from precipitation and snowmelt. The water then drains to a common waterway, such as, a stream, lake, aquifer, or wetland.

Glaciers of Anoka county!!

Minnesota was inhabited by Two Major Glaciers in its history

The Des monies lobe from the Wisconsin Glacier

The Superior lobe form the Wisconsin glacier

Quaternary geology of Anoka county Minnesota

Anoka county is covered mostly by till with is formed under glaciers

The Glaciers Left behind soil in Anoka county called till!

The Great Anoka Sand Plain!!

These lakes were left by glaciers receding through Minnesota.

The Anoka Sand plain covers almost all of Anoka county (The Plain covers the till left behind by the glaciers). This sand was left when glacial lakes and rivers drained at the end of the ice age.

Eskers!!

Esker—Sinuous ridge of sand and gravel deposited in an ice-walled channel of a glacial meltwater stream. The fluvial sediment may be covered by 10 feet (3 m) or more of till.

You can see eskers and glacial troughs in the north west corner of Anoka county! !

Eskers!!

Deep, broad,

irregular troughsDeep, broad, irregular

troughs—Locally contain long lakes or chains of lakes. Interpreted to reflect valleys cut by meltwater flowing beneath Superior lobe ice that were partially buried by subsequent glacial events.

Glacial Troughs!!

Thanks for coming to Anoka County Minnesota!!

• Slide 1)• http://www.nps.gov/miss/naturescience/images/prairestcena.jpg• http://www.nps.gov/miss/planyourvisit/images/manominPark.jpg• http://www.anokacountyparks.com/images/photos/camp_salie.jpg• http://www.anokacountyparks.com/images/photos/sec_rumcent.jpg

• Slide 2) • http://upload.wikimedia.org/wikipedia/commons/7/7c/Americas_Koppen_Map.png

• Slide 3)• http://www.freefoto.com/images/16/08/16_08_25---Snow-Scene_web.jpg• http://www.ncrs.fs.fed.us/pubs/gtr/other/gtr-nc178/images/fig13.jpg• http://babajidesalu.files.wordpress.com/2009/07/rain24-hours.jpg

• Slide 4)•

http://www.ci.lino-lakes.mn.us/vertical/Sites/%7BA233BB09-8316-4E17-A27A-C25E01027DA7%7D/uploads/%7B4C6CA35C-7DD8-4C82-ADAC-33DAEF772DCF%7D.JPG

• Slide 5)• http://farm3.static.flickr.com/2083/1816626705_e09b2c0e68.jpg• http://z.about.com/d/forestry/1/0/c/A/biome1999a.gif

• Slide 6)• http://dacnet.nic.in/aislus%20ranchi/images/map_alfisols_big.jpg

BIBLIOGRAPHY

BIBLIOGRAPHY CONT.

•Slide 7)•http://www.geo.msu.edu/soilprofiles/Ultic%20Hapludalf.JPG•http://soils.usda.gov/technical/classification/orders/images/alfisol.jpg•Slide 8) •http://www.co.rice.mn.us/parks/photos/Wilderness-LimestoneBluff1.jpg•http://www.geology.ar.gov/images/powell%20outcrop.JPG•http://energytechstocks.com/wp/wp-content/uploads/2007/11/shale-rock330.jpg•http://media.photobucket.com/image/Sandstone%20rock%20in%20Minnesota/CraigCreekRider/Blue%20Ridge%20Parkway%20Area/Spec%20Mines%20Dody%202Loops/100_7017.jpg

•Slide 9)• http://pubs.usgs.gov/ha/ha730/ch_j/jpeg/J103.jpeg•http://clasticdetritus.files.wordpress.com/2008/03/fff45.jpg•Slides 10) 11) 12) 13)• http://www.anokanaturalresources.com/soil/gen_soils_map.htm•Slide 14)•http://www.anokanaturalresources.com/water/precipitation/2009_chart.htm• Slide 16) •http://www.minnesotaslakes.com/LakePages_TC/899993-R1-09-8A.JPG•http://www.anokanaturalresources.com/water/lakes/index.htm

Slide 17) • http://www.anokanaturalresources.com/water/lakes/lakes_map.htmSlide 18) • http://www.anokanaturalresources.com/water/streams/index.htm• http://media.photobucket.com/image/Rivers%20in%20Minnesota/2008EarthHealing/Dalheimer

%20Racist%20Indian%20names/RumRiver1.jpgSlide 19) 20)• http://www.anokanaturalresources.com/water/streams/index.htm• http://www.anokanaturalresources.com/water/streams/chem_mon/typo_crk.htmSlide 21) http://www.watershedactivities.com/projects/fall/media/watershed-diagram-2.jpgSlide 22) • http://www.alaska-in-pictures.com/data/media/16/college-fjord-tidal-glaciers_1176.jpgSlide 23)• http://www.anokanaturalresources.com/soil/geo_his_sandplain.htmSlide 25)Slide 25) • http://www.extension.umn.edu/distribution/naturalresources/images/6574f01.gifSlide 26) http://images.google.com/imgres?imgurl=http://www.anokanaturalresources.com/soil/

soil_images/glacier1.jpg&imgrefurl=http://www.anokanaturalresources.com/soil/geo_his_sandplain.htm&usg=__tGTL3YQMqz9r6Mx5ETloG9TRFNU=&h=245&w=221&sz=9&hl=en&start=8&um=1&itbs=1&tbnid=pkWoNahwkXM2cM:&tbnh=110&tbnw=99&prev=/images%3Fq%3DGlacial%2Bhistory%2Bof%2BAnoka%2Bcounty%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26sa%3DN%26rls%3Dorg.mozilla:en-US:official%26channel%3Ds%26tbs%3Disch:1

BIBLIOGRAPHY CONT.

•Slide 27) •http://www.pricoldclimate.org/files/u42/helenallisonshot.jpg•Slide 28) •http://www.anokanaturalresources.com/soil/geo_his_sandplain.htm•Slide 29) •http://home.kabelfoon.nl/~trogon/Scand2003/SwedenFinland/ZwedenEsker.jpg•Slide 30)• Quaternary Map of Anoka County Minnesota •Slide 31)• Quaternary Map of Anoka County Minnesota

BIBLIOGRAPHY CONT.