When John Denver wrote the words Rocky Mountain High Colorado, He must have been talking about Leadville; this is the highest incorporated city in America. Nestled in the heart of the Rocky Mountains at 10,152 feet. Lake County is the home of Colorado Mountain College, Mt. Elbert: (the highest peak in the Rockies) and home to the highest disc golf course OH YA! This will also be my home for 6 glorious weeks.