YAKIMA

OKANOGAN

KING

GRANT

LEWIS

CHELAN

FERRY

STEVENS

KITTITAS

ADAMS

LINCOLN

SKAGIT

WHITMAN

BENTON

PIERCE

WHATCOM

KLICKITAT

CLALLAM

DOUGLAS

SPOKANE

SNOHOMISH

SKAMANIA

JEFFERSON

MASON

COWLITZ

FRANKLIN

GRAYS HARBOR

PACIFIC

PEND OREILLE

CLARK

WALLA WALLA ASOTIN

COLUMBIA

GARFIELD

THURSTON

KITSAP

ISLAND

WAHKIAKUM

SAN JUAN

Pasco

Kelso

Yakima

Tacoma

Dayton

Colfax

Asotin

Spokane

Shelton

Seattle

Prosser

Pomeroy

Olympia

Newport

Everett

Ephrata

Republic

Okanogan

Colville

Chehalis

Wenatchee

Vancouver

Stevenson

Ritzville

Montesano

Davenport

Cathlamet

Waterville

South Bend

Goldendale

Ellensburg

Coupeville

Bellingham

Walla Walla

Port Orchard

Port Angeles

Mount Vernon

Port Townsend

Friday Harbor

NATURAL RESOURCES CONSERVATION SERVICE

Ground-Penetrating Radar Soil SuitabilityMap of Washington

0 25 50 75MilesAlbers Equal Area Map Projection

North American Datum of 1983

Sources:Doolittle , J. A. F. E. Minzenmayer, S. W. Waltman, E. C. Benham, J. W. Tuttle, and S. Peaslee. 2006. State Ground-penetrating Radar Soil Suitability Maps. Paper HYD; 13_mdx. 1-8 pp. IN: Daniels, J. J., and C-C. Chen (Eds.) Proceedings of the 11th International Conference on Ground Penetrating Radar, Columbus, Ohio, June 19 - 22, 2006. CD.USDA-NRCS. 2007. County Boundaries derived from 1:100,000 (Bureau of Census - TIGER). National Cartography and Geospatial Center, Ft. Worth, Texas.USDA-NRCS. 2007. Ground-Penetrating Radar Soil Suitability Maps. National Collection. (http://www.soils.usda.gov/survey/geography/maps/GPR/index.html). Fiscal Year 2007, second quarter edition. USDA-NRCS. 2007. Roads layer derived from 1:100,000 (Bureau of Census - TIGER). National Cartography and Geospatial Center, Ft. Worth, Texas.USDA-NRCS. 2007. Soil Survey Geographic Database (SSURGO) version 2.1. Washington Collection. Spokane, WA. Soil Data Mart Source (http://soildatamart.nrcs.usda.gov). Fiscal Year 2007, second quarter edition.

NGDC-6103-07242007-1U.S. DEPARTMENT OF AGRICULTUREMap prepared by USDA-NRCS Soil Survey Division-National Geospatial Development Center, 157 Clark Hall Annex, West Virginia University, Morgantown, WV 26506-6301

GPR Suitability Index andApplication Potential

High Potential12

Moderate Potential3

Low Potential45

Unsuited6

WaterNo DataNot Digitized