The Animas watershed is part of the San Juan basin in southwestern Colorado and has a population of approximately 36,000 people. The watershed is 1,371 square miles of which 51% is protected. Forests cover 71% of the Animas watershed.
The Mancos watershed is part of the San Juan basin in southwestern Colorado and has a population of approximately 5,000 people. The watershed is 803 square miles of which 15% is protected. Forests cover 53% of the Mancos watershed.
The Piedra watershed is part of the San Juan basin in southwestern Colorado and has a population of approximately 7,000 people. The watershed is 677 square miles of which 33% is protected. Forests cover 90% of the Piedra watershed.