Lake Roosevelt National Recreation Area: Geologic and Soil Resources Inventory Summary
Henderson T. 2025. Lake Roosevelt National Recreation Area: Geologic and Soil Resources Inventory Summary. National Park Service
This document summarizes the status of National Park Service (NPS) Geologic Resources Inventory (GRI) and Soil Resources Inventory (SRI) deliverables for Lake Roosevelt National Recreation Area. It also provides information on current geology and soil resources management concerns, with a focus on identified inventory needs related to geologic heritage, geohazards, and related soil features and processes. This document is intended to assist park staff with prioritizing technical assistance or new inventory and assessment funding requests in the near term (roughly 1–5 years). The GRI hosted a baseline scoping meeting for Lake Roosevelt National Recreation Area in September 2002. Baseline bedrock and surficial geologic maps were delivered to the recreation area in 2009 and updated in 2023. SRI delivered a legacy soil database, map, and “enhanced report” in 2013. Additional soil survey reports have been published by the US National Resource Conservation Service (NRCS) that include Ferry, Lincoln, Okanogan, and Stevens counties, as well as the Colville Reservation. The most up-to-date soil data for the recreation area is available through Web Soil Survey. Lake Roosevelt National Recreation Area’s geologic heritage is ingrained in its paleontological records; Indigenous connections; and its geologic connections to historic mining. The geologic and soil resources inventory needs for the park include various data and/or GIS information related to the inventory and monitoring of geohazards, cultural resources, and fossils, in addition to geologic mapping needs. Geologic hazards identified in the park include cave and karst, climate change, disturbed lands (e.g., abandoned mineral lands, overgrazing, land use changes), flooding, mass wasting, radon, reservoir tsunamis, seismicity, swelling clays, and toxicological soil. Additional guidance for park staff regarding proposal processes and timeframes for the new Inventories and Assessment (I&A) program is available on the GSRI and I&A SharePoint sites.
- Type
- Unpublished Report
- Authors
- Henderson, Timothy
- Date of Issue
- 2025-04
- Publisher
- National Park Service
- Units
- GRI , LARO , PWR , SRI , UCBN
- Keywords
- Geologic Features, Geologic Hazards, Geologic Heritage, Geologic History, Geologic Processes, GSRI, Map Units, Resource Management
- Subjects
- Ecological Framework: Geology and Soils | Geomorphology | Glacial Features and Processes , Ecological Framework: Geology and Soils | Geomorphology | Hillslope Features and Processes , Ecological Framework: Geology and Soils | Geomorphology | Stream/River Channel Characteristics , Ecological Framework: Geology and Soils | Geomorphology | Lake Features and Processes , Ecological Framework: Geology and Soils | Subsurface Geologic Processes | Cave/Karst Features and Processes , Ecological Framework: Geology and Soils | Subsurface Geologic Processes | Volcanic Features and Processes , Ecological Framework: Geology and Soils | Subsurface Geologic Processes | Seismic Activity , Ecological Framework: Geology and Soils | Soil Quality | Soil Function and Dynamics , Ecological Framework: Geology and Soils | Paleontology | Paleontology