TerrainEval, ltd. Share: Engineering TerrainEval, ltd. Visit Website Request Info 606 Lakeside Drive Basalt, CO 81621 (970) 231-3813 TerrainEval About Us Technology company specializing in multi-sensor systems for navigation and observation. About Media Map About Technology company specializing in multi-sensor systems for navigation and observation. Media What's Nearby? Distance: 5 10 15 20 25 50 mi.