Description: ***This is derived from USDA Soils data.*** This coverage provides the county with the hydric soils data of the USDA. It is derived from the soils coverage using the hydric attribute. This data is a subset of the Soils NRCS 1990 data as specified in the Comprehensive Plan
Description: Last updated on 12/24/2020 by ERP.This data shows the designated mineral resource lands in Thurston County. This dataset is based on underlying geology and other factors that may support the commercial extraction of minerals. The basis of analysis was WADNR's 24 and 100K geology data that was adjusted to Thurston County 2011 LiDAR. Thurston County contracted Associated Earth Science,Inc.(AESI) to identify and classify mineral resources in the County and create a base inventory map showing the location of mineral resources. Resource classification (for example, A1, B3, etc.) for sand and gravel (aggregate) and quarry rock was made based on quality, quantity and other information derived from Thurston County, Washington State and Federal sources.Sand and Gravel(Aggregate)Resource Stratadecreasing resource qualityNon-ResourceQuality Type AQuality Type BQuality Type CQuality Type DDecreasing resource thickness and volumeQuantity Type 1•25 years’ life expectancy•Minimum 240,000yd3/acre•>100 feet thick•Minimum overburden•Up to 15 percent fines•70:30 to 30:70 sand and gravel ratio•>25 years’ life expectancy•Minimum 240,000 yd3/acre•>100 feet thick•Minimum overburden•Up to 25 percent fines•70:30 to 30:70 sand and gravel ratio•>25 years’ life expectancy•Minimum 240,000yd3/acre•>100 feet thick•Minimum overburden•Generally unsuitable for extraction •>25 percent fines, may have high organic content•Out of 70:30 to 30:70 sand and gravel range•No life expectancy•30 percent waste rock•Highly to very highly fractured and (or) weathered and (or) poorly lithified•No rockery-size material producedType 2None•Formation undividedand >50% of formation contains mostly resource strata of type B as defined for Type 1 bedrock•Formation undividedand >50% of formation contains mostly resource strata of type C as defined for Type 1 bedrockType 3•Formation undividedand <50% formation contains mostly resource strata of type B as defined for Type 1•Formation undividedand <50% of formation contains mostly resource strata of type C as defined for Type 1The mineral resource inventory was adopted on November 12, 2019 with Resolution 15836 as Map N-3.The mineral resource inventory was then used as a basis to create the mineral resource lands designation. Designated mineral resource lands were determined through evaluation of the mineral resource inventory data based on location and parcel size considerations. Areas were added or removed from the inventory based on the guidance from the Thurston County Board of County Commissioners, Planning Commission, and input from the public. These included: Proximity to public preserves, parks, national wildlife refuges, state conservation areasProximity to Cities, Urban Growth Areas, and Federal or Tribal LandsLocations of transportation rights of wayLocations of Thurston County historic sitesLocations of previously designated and current permitted mining locationsParcel size threshold of a minimum of 5 acres in sizeParcel adjacency where more than 40% of the surrounding parcels are less than 5 acres in sizeInformation regarding the analysis processes is included in the Metadata Lineage and in documentation stored by the Thurston County Community Planning and Economic Development.
Service Item Id: 919d3f1fbc2449feb623893d7c7652c1
Copyright Text: Thurston County Community Planning and Economic Development, Thurston County GeoData
Description: Shoreline Master Plan for Thurston County, WA. Thurston County's dataset that defines environmentally sensitive areas. The purpose of this data is to aide planners and permit center personnel in determining environmental impacts on property. This layer is used as a screening tool and the informaiton is based upon the Shoreline Master Program for the Thurston Region Effective May 15, 1990. Updated by kah on May 25, 2016
Service Item Id: 919d3f1fbc2449feb623893d7c7652c1
Copyright Text: Thurston County Resource Stewardship
Thurston Regional Planning Council
Thurston GeoData Center
Color: [38, 115, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: center Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 8 Font Family: Arial Font Style: normal Font Weight: normal Font Decoration: none
Description: Thurston County Hydro/Stream data originated as coverage file representation of the Thurston County hydro network. It included all waterbodies: rivers, lakes, ponds, inlets and streams. The features were digitized by the Thurston GeoData Center from the Thurston Comap, Assessor's Data dated 1990, and Tiger Files using rubber sheeting and aerial digitizing. In 2002-2003 the data was updated along Marine Shorelines using updated Aerial Photography. In 2011 the hydro coverage file were converted into feature class files during which process stream and river data was separated from other waterbodies; large river areas, lakes, ponds, and marine areas. The datasets were renamed to Streams and Waterbodies respectively. In 2014 some minor adjustments were made to both layers in the Lake Lawrence area as the result of LiDAR derived hydro enforced DEM data.
Description: Last updated on 3/12/2026 by WE.The Stream Review Areas layer combines the Thurston County Streams and Washington Department of Natural Resources Streams layers with a buffer distance of 400 feet. This layer supports the Thurston County Critical Areas Ordinance (CAO).
Service Item Id: 919d3f1fbc2449feb623893d7c7652c1
Copyright Text: Washington Department of Natural Resources, Thurston County GeoData Center
Description: Thurston County Hydro/Stream data originated as coverage file representation of the Thurston County hydro network. It included all waterbodies: rivers, lakes, ponds, inlets and streams. The features were digitized by the Thurston GeoData Center from the Thurston Comap, Assessor's Data dated 1990, and Tiger Files using rubber sheeting and aerial digitizing. In 2002-2003 the data was updated along Marine Shorelines using updated Aerial Photography. In 2011 the hydro coverage file were converted into feature class files during which process stream and river data was separated from other waterbodies; large river areas, lakes, ponds, and marine areas. The datasets were renamed to Streams and Waterbodies respectively. In 2014 some minor adjustments were made to both layers in the Lake Lawrence area as the result of LiDAR derived hydro enforced DEM data.
Description: This dataset was created as a composite of the wetland delineations identified by The Thurston Regional Planning Council (TRPC) staff and the National Wetlands Inventory data. The information from TRPC was created over several years by TRPC, Contractor's, GeoData. Last Update made: 8 November 2011 by KLB.
Description: Tied to the updated County Wetlands Inventory 2017. This layer is intended to be a composite of new wetland standards, old wetland (pre-2017) delineations, identified by The Thurston Regional Planning Council (TRPC) staff and the National Wetlands Inventory data. Edits to the data area made using verified wetland reports that have been submitted to and accepted by the Thurston County Resource Stewardship Planning Department. This data was combined with updated wetland delineations, circa 2014, for the Deschutes Watershed Project area (TRPC) and updated with standards provided by the Thurston County Wetlands Working Group. The information from TRPC was created over several years by TRPC, Contractor's, GeoData. All edits and updates are approved by the Thurston County Resource Stewardship Current Planning or Long Range Planning Departments. This dataset was created to inform county staff and the public of where the critical wetland sites were located for planning purposes. All data should be checked with the appropriate subject matter expert and any request for changes or updates sent to the Resource Stewardship Planning Department. Last Update made: 11/1/2017 by KAH.
Service Item Id: 919d3f1fbc2449feb623893d7c7652c1
Copyright Text: Thurston County GeoData Center, Thurston County Resource Stewardship, Long Range Planning and Current Planning
Description: This dataset was created as a composite of the wetland delineations identified by The Thurston Regional Planning Council (TRPC) staff and the National Wetlands Inventory data. The information from TRPC was created over several years.