Brooks Lake
Fremont County, WyomingView mapDirections
Wyoming DEQ publishes the water-quality measurements for Brooks Lake. Here is what has been measured.
- Eutrophic
- Impaired · Nutrients (phosphorus, nitrogen)
Brooks Lake in Fremont County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 6.3 ft visibility. Phosphorus: 50 µg/L.
Brooks Lake is a productive, nutrient-rich eutrophic lake in Fremont County, Wyoming. Overall water quality is declining over recent sampling years. Compared to the 17 other monitored lakes in Fremont County, Brooks Lake ranks #14 for water quality.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2021-10-20. Methodology: how these readings are compared.
If you are planning to stay, you can search lake houses and cabins around Brooks Lake on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Brooks Lake is good for
From access and monitoring records, not editorial picks.
- Camping1 public campground nearby
Swimming conditions
Readings onlyElevated nutrients
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Brooks Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), pH / acidity. Check local advisories before you swim.
Whether Brooks Lake is safe to swim in today is a call for the Wyoming Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Brooks Lake
These are the measurements Wyoming DEQ publishes for Brooks Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 6.3 ft. Phosphorus 50 µg/L. TSI 56.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 50µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 56 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Brooks Lake
Answers come straight from the public measurements and survey records on this page.
Recreation & Access
Public campgrounds near Brooks Lake
- Pinnacles0.2 km
Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes
Stays via Stay22
Stays near Brooks Lake
Compare lakeside cabins, hotels, and vacation rentals near Brooks Lake in Fremont County, Wyoming — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Brooks Lake are listed below.
Top-rated places to stay near Brooks Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Planning a whole trip? See where to stay at Wyoming’s top lakes →
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Fishing Brooks Lake
Water quality readings over time
3 seasons of samples on record (2012–2021). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening2 years
Phosphorus
Stable-0.55 µg/L/yr3 years
EPA Impairment Status
Brooks Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit WYBH100800010104_01 · Official waterbody report
Nearby Lakes in Fremont County
Frequently asked questions about Brooks Lake
Where is Brooks Lake?
- Brooks Lake is a lake in Fremont County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Brooks Lake?
- Brooks Lake in Fremont County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 6.3 ft visibility. Phosphorus: 50 µg/L.
Is Brooks Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Brooks Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen), pH / acidity. Check local advisories before you swim.
Are there campgrounds on Brooks Lake?
- Brooks Lake has 1 public campground from USGS The National Map within 5 km, including Pinnacles. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.
Explore Brooks Lake across LakeQuality
2 thermal springs within 23 mi, nearest Geyser (Warm Spring Creek Springs)
Species activity outlook by water temperature and season
Where to stay at Wyoming's top lakes, each with its readings
Wyoming's cleanest lakes, ranked on agency measurements
Planning a trip around Grand Teton?
Brooks Lake is about 36 miles from Grand Teton National Park. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Grand Teton →More lakes in Wyoming
Other Lakes in Wyoming
Eutrophic Lakes in Wyoming
Where this data comes from
28 measurements from 1 monitoring station, 2012–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- State of Wyoming Department of Environmental Quality Watershed Program
WYDEQ_WATERSHED28 samples · 2012–2021
Analytical methods
- Secchi
- Total Phosphorus After Block Digestion
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Public campgrounds from USGS The National Map Structures, within about 3 miles