R&M provided geologic and geotechnical services for the design of a diversion structure, and a two-mile long open channel cut into bedrock in mountainous terrain. R&M used photo-geologic interpretation and site reconnaissance to produce a geologic terrain unit map of the project area. We performed detailed rock structure mapping for use in kinematic stability analysis of rock slopes. R&M drilled boreholes with a helicopter portable drill rig using rotary coring methods. Several of the borings were pressure tested to estimate bedrock permeability. The R&M team conducted six seismic profiles to estimate the depth to bedrock and bedrock rippability.