STEAMBOAT SPRINGS — Peter Frombgen tries not to take this for granted.

Every morning for 20 years, the former ski bum and bike mechanic peers out the window of his mobile home tucked alongside Lincoln Avenue, basking in a full view of the town’s famed ski area and lush Emerald Mountain before him.

The ramshackle trailer might represent the most unique living arraignment in Routt County: A 1953 silver airstream cut in half, with a standard mobile home haphazardly welded in the middle. The kitchen floor slopes at odd angles and water sometimes leaks through ceiling cracks during heavy rainstorms.

But the home allows Frombgen, 70, to...