Stony Pass, headwaters of the Rio Grande River

RIO GRANDE NATIONAL FOREST, CO - Colin McDonald climbs up a snow bank to take a water sample at Stony Pass (12,800 ft.), the headwaters of the Rio Grande River on the Continental Divide in the Rio Grande National Forest near Creede, Colorado JUNE 20, 2014. CREDIT: Erich Schlegel/Disappearing Rio Grande Expedition — RIO GRANDE NATIONAL FOREST, CO – Colin McDonald climbs up a snow bank to take a water sample at Stony Pass (12,800 ft.), the headwaters of the Rio Grande River on the Continental Divide in the Rio Grande National Forest near Creede, Colorado JUNE 20, 2014. CREDIT: Erich Schlegel/Disappearing Rio Grande Expedition

RIO GRANDE NATIONAL FOREST, CO – Colin McDonald climbs up a snow bank to take a water sample at Stony Pass (12,800 ft.), the headwaters of the Rio Grande River on the Continental Divide in the Rio Grande National Forest near Creede, Colorado JUNE 20, 2014. CREDIT: Erich Schlegel/Disappearing Rio Grande Expedition