NASA Now Measuring Snowpack in CA & CO | Great News for Skiers and Riders! NASA has begun a new project called the “Airborne Snow Observatoryโ that is mounted within a Twin Otter aircraft flying at 17,500-22,000-feet over theย Tuolumne River Basin in California’s Sierra Nevada as well as over Colorado’s Uncompahgre River Basin. ย This NASA mission will map the entire snowpack of two critical water sheds in California & Colorado mountains. ย The watershed in California […] Miles Clark | May 3, 2013 5 Comments