Ferron Reservoir
Sanpete County, UtahView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
- Oligotrophic
- #2 of 11 in the county
- Public access
- Limited data
Ferron Reservoir in Sanpete County, Utah has a water quality grade of A (Excellent). Water clarity: 19 ft visibility. Phosphorus: 9.8 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
- Clarity
- 19 ft
- Type
- Oligotrophic
- Phosphorus
- 9.8 µg/L
- Chlorophyll-a
- 1.1 µg/L
- Trend
- ↑ Improving
- Public access
- Yes
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Watch Ferron Reservoir’s letter
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Ferron Reservoir is a cold, clear oligotrophic lake in Sanpete County, Utah. Water quality is graded A based on 2 sampling years through 2025. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 10 other monitored lakes in Sanpete County, Ferron Reservoir ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2025-09-24. Grade methodology: LakeQuality methodology.
What Ferron Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water19 ft of visibility
- Boat launch1 documented ramp
- Camping2 public campgrounds nearby
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: A (Excellent)
Crystal clear, you can see 19 ft down. Phosphorus 9.8 µg/L. Chlorophyll-a 1.1 µg/L. TSI 34. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 19 ft | Not graded |
| Phosphorus | 9.8 µg/L | Good |
| Chlorophyll-a (Algae) | 1.1 µg/L | Good |
| Trophic State Index (TSI) | 34 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Recreation & Access
- Ferron ReservoirPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Ferron Reservoir
- Ferron Reservoir Campground0.5 km
- Twelve Mile Flat Cg3.7 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 Ferron Reservoir
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.216 m/yr | 3 |
| Chlorophyll-a | ↑ Improving | -0.24 µg/L/yr | 3 |
Reservoir Info (USACE NID)
Ferron Reservoir is a man-made reservoir impounded by the Ferron (completed 1974), built primarily for water supply on the Indian Creek; earth-type dam, 32 ft tall and 1,873 ft long.
- Normal storage
- 450 ac-ft
- Max storage
- 930 ac-ft
- Drainage area
- 3 sq mi
- Hazard class
- Significant
- Owner
- DIVISION OF WILDLIFE RESOURCES
Source: USACE National Inventory of Dams, NID ID UT00106 · Operator website
County Ranking
Ranked #2 of 11 lakes in Sanpete County
Nearby Lakes in Sanpete County
Frequently asked questions about Ferron Reservoir
Where is Ferron Reservoir?
- Ferron Reservoir is a lake in Sanpete County, Utah. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Ferron Reservoir?
- Ferron Reservoir in Sanpete County, Utah has a water quality grade of A (Excellent). Water clarity: 19 ft visibility. Phosphorus: 9.8 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
Is Ferron Reservoir safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Ferron Reservoir?
- Ferron Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Ferron Reservoir. Public access is listed as yes.
Are there campgrounds on Ferron Reservoir?
- Ferron Reservoir has 2 public campgrounds from USGS The National Map within 5 km, including Ferron Reservoir Campground, Twelve Mile Flat Cg. 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 Ferron Reservoir across LakeQuality
2 thermal springs within 13.2 mi, nearest Livingston Warm Springs
Species activity outlook by water temperature and season
Where to stay at Utah's top lakes, each with its grade
Low nutrients, clear water. The letter is not a swimming clearance.
Utah's cleanest and most-polluted lakes, ranked
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Other Grade A Lakes in Utah
Oligotrophic Lakes in Utah
Where this data comes from
17 measurements from 1 monitoring station, 2019–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Utah Department Of Environmental Quality
UTAHDWQ_WQX17 samples · 2019–2025
Analytical methods
- Field Measurements
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles