This scope of work (SOW) is to perform geotechnical drilling to determine depth to bedrock and to locate potential permafrost and groundwater at two (2) sites along Trail Ridge Road (U.S. 34) in Rocky... This scope of work (SOW) is to perform geotechnical drilling to determine depth to bedrock and to locate potential permafrost and groundwater at two (2) sites along Trail Ridge Road (U.S. 34) in Rocky Mountain National Park. Trail Ridge Road is maintained and managed by National Park Service (NPS) staff. Located in the State of Colorado counties of Larimer and Grand.