Browse lakes and reservoirs

Named lake-type waterbodies with a populated record: assessment verdicts, listed impairment causes, or a linked USGS gauge. Data updated 2026-08-17.

Waterbodies

Showing 51–100 of 122

WaterbodyStateStatusCauses
Lake John CO Not Supporting 2
Lake Meredith. CO Not Supporting 1
Lake Nighthorse. CO Not Supporting 1
Lake San Cristobal, Taylor Park Reservoir, Morrow Point Reservoir, Crystal Reservoir, and Silver Jack Reservoir. CO Fully Supporting 0
Lake Thomas. CO Fully Supporting 0
Lemon Reservoir. CO Fully Supporting 0
Lollipop Lake. CO Fully Supporting 0
Lonetree Reservoir. CO Fully Supporting 0
Maggio Ponds. CO Fully Supporting 0
Mancos Reservoir (Jackson Gulch Reservoir). CO Fully Supporting 0
Martin Lake (Ohem Lake) CO Not Supporting 2
McPhee Reservoir. CO Not Supporting 1
Milton Reservoir. CO Not Supporting 3
Miramonte Reservoir. CO Not Supporting 1
Mountain Home Reservoir. CO Not Supporting 2
Narraguinnep Reservoir. CO Not Supporting 1
Navajo Reservoir. CO Not Supporting 1
Ned Wilson Lake. CO Not Supporting 1
Nee Gronda Reservoir. CO Not Supporting 1
North Catamount Reservoir CO Fully Supporting 0
North Delaney Lake CO Not Supporting 1
North Sterling Reservoir. CO Not Supporting 2
Overland Lake. CO Not Supporting 1
Paonia Reservoir. CO Fully Supporting 0
Parkfield Lake. CO Not Supporting 2
Pikeview Reservoir. CO Fully Supporting 0
Prewitt Reservoir, Empire Reservoir, and Vancil Reservoir. CO Fully Supporting 0
Prospect Lake. CO Not Supporting 1
Pueblo Reservoir. CO Not Supporting 1
Puett Reservoir. CO Not Supporting 1
Ralston Reservoir. CO Fully Supporting 0
Ridgway Reservoir. CO Fully Supporting 0
Rifle Gap Reservoir. CO Not Supporting 2
Rio Blanco Lake. CO Not Supporting 2
Riverside Reservoir CO Fully Supporting 0
Road Canyon Reservoir. CO Not Supporting 2
Rocky Mountain Lake CO Not Supporting 2
Ruedi Reservoir. CO Not Supporting 1
San Luis Lake. CO Not Supporting 2
Sanchez Reservoir. CO Not Supporting 1
Seaman Reservoir. CO Not Supporting 2
Shadow Mountain Reservoir. CO Not Supporting 1
Silver Lake. CO Not Supporting 2
Skagway Reservoir. CO Not Supporting 2
Sloan's Lake CO Not Supporting 1
Smith Lake CO Not Supporting 1
South Catamount Reservoir, and Crystal Creek Reservoir. CO Fully Supporting 0
South Delaney Lake CO Fully Supporting 0
Stagecoach Reservoir CO Not Supporting 2
Standley Lake. CO Fully Supporting 0

Source: EPA ATTAINS and USGS National Water Information System State Integrated Report assessment decisions + USGS daily values · 2026