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Clinton Gulch Reservoir seen from the air, deep blue water in a forested valley below a high rocky crest

Field NotesAdventure Storytelling Media

Blue at eleven thousand feet

An alpine reservoir on Fremont Pass — and stranger water a little farther up the road.

Fremont Pass, Colorado · 2026.08.06

Amazing Aerial AgencyAerial work licensed through Amazing Aerial Agency
  • colorado
  • drone
  • reservoir
Clinton Gulch Reservoir from higher up, the Tenmile Range ridgeline running along the skyline behind it
Licensed through Amazing Aerial Agency
A turquoise tailings impoundment at the Climax mine, its pale embankment stepping up to the ridge behind
Licensed through Amazing Aerial Agency

Clinton Gulch Reservoir sits just off Fremont Pass at around 11,000 feet, held in a forested valley under the Tenmile crest. From above it reads the way a high reservoir should — deep blue, cold, ringed by spruce.

A short distance up the pass the water changes colour completely. These are the tailings impoundments of the Climax molybdenum mine, and the turquoise is mineral, not depth. The same afternoon, a few hundred feet of elevation apart.

Both are worth flying. The blue is the picture people expect from the Colorado high country; the green is the one they don’t.

Turquoise and ochre meeting across the surface of a tailings pond, the shoreline drawn in pale sediment
Licensed through Amazing Aerial Agency