Colter North Dock Lake
Teton County, WyomingView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Limited data
Colter North Dock Lake in Teton County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.8 ft visibility.
- Clarity
- 9.8 ft
- Trend
- ↓ Declining
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Stays near Colter North Dock Lake
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Watch Colter North Dock Lake’s letter
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Why Colter North Dock Lake has no grade
Colter North Dock Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Colter North Dock Lake is Not Rated — not an F. Its 9.8-foot median from 2 readings collected 2021–2024 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by Wyoming DEQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Colter North Dock Lake is a lake in Teton County, Wyoming. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2024-06-25. Grade methodology: LakeQuality methodology.
What Colter North Dock Lake is good for
From access and monitoring records, not editorial picks.
- Clear water9.8 ft of visibility
- Camping1 public campground nearby
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Colter North Dock Lake
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 9.8 ft. TSI 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Recreation & Access
Public campgrounds near Colter North Dock Lake
- Colter Bay Campground0.7 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
Fishing Colter North Dock Lake
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.734 m/yr | 3 |
Nearby Lakes in Teton County
Frequently asked questions about Colter North Dock Lake
Where is Colter North Dock Lake?
- Colter North Dock Lake is a lake in Teton County, Wyoming. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Colter North Dock Lake?
- Colter North Dock Lake in Teton County, Wyoming is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.8 ft visibility.
Is Colter North Dock Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Are there campgrounds on Colter North Dock Lake?
- Colter North Dock Lake has 1 public campground from USGS The National Map within 5 km, including Colter Bay Campground. 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 Colter North Dock Lake across LakeQuality
2 documented falls within 23 mi, nearest Hidden Falls
2 thermal springs within 18.2 mi, nearest Jackson Lake Hot Springs
Species activity outlook by water temperature and season
Where to stay at Wyoming's top lakes, each with its grade
Wyoming's cleanest and most-polluted lakes, ranked
Planning a trip around Grand Teton?
Colter North Dock Lake is about 7 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 Wyoming Lake Rankings
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Where this data comes from
2 measurements from 1 monitoring station, 2021–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Bureau of Reclamation
1119USBR_WQX2 samples · 2021–2024
Analytical methods
- Zebra/Quagga Mussel APHA 10200G Modified
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Public campgrounds from USGS The National Map Structures, within about 3 miles