Taos County Lake Quality
New Mexico, 2 lakes, average grade C (Fair)
Only 2 lakes in Taos County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. Taos County averages to a C. The distribution behind that average matters more than the letter: a few stressed lakes versus many decent ones can produce the same average as the inverse.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Nla Lake (C) is the cleanest in the county.
Quick Answers for Taos County
Planning a trip? Check special fishing regulations for Nla Lake — or check the official New Mexico fishing regulations.
All Lakes in Taos County
| Rank | Lake | Grade | Clarity | Phosphorus |
|---|---|---|---|---|
| 1 | Nla Lake | C | 8.2 ft | 8007.4 µg/L |
| 2 | Cabresto Lake Deep | C | 13.1 ft | - |
Other Counties in New Mexico
See how Taos County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all 34 states.
Where to stay near Taos County
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Source: EPA National Aquatic Resource Surveys, 2026.