Worthen Meadows Reservoir
Fremont County, Wyoming92 acresView mapDirections
Wyoming DEQ publishes the water-quality measurements for Worthen Meadows Reservoir. Here is what has been measured.
- Oligotrophic
- Public access
- Limited data
Worthen Meadows Reservoir in Fremont County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 15.9 ft visibility. Phosphorus: 10 µg/L. Surface area: 92 acres.
Worthen Meadows Reservoir is a 92-acre cold, clear oligotrophic lake in Fremont County, Wyoming. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 17 other monitored lakes in Fremont County, Worthen Meadows Reservoir ranks #10 for water quality.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2021-09-08. Methodology: how these readings are compared.
What Worthen Meadows Reservoir is good for
From access and monitoring records, not editorial picks.
- Clear water15.9 ft of visibility
- Boat launch1 documented ramp
- Camping2 public campgrounds nearby
Swimming conditions
Readings onlyLimited data
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. Check local advisories before you swim.
Whether Worthen Meadows Reservoir 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 Worthen Meadows Reservoir
These are the measurements Wyoming DEQ publishes for Worthen Meadows Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 15.9 ft down. Phosphorus 10 µg/L. TSI 37.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 15.9ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 10µg/L | Good 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. | 37 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Worthen Meadows Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
92 acres
Public access
Yes
Listed by Wyoming DEQ
The available depth estimate for Worthen Meadows Reservoir is shallower than its measured water clarity, which cannot be right, so no depth is shown.
Lake Size & Watershed
Watershed (drainage) area
14 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.9 mi
HydroLAKES / HydroSHEDS
Elevation
8,822 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- Worthen Meadows ReservoirPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Public campgrounds near Worthen Meadows Reservoir
- Worthen Meadow Campground0.9 km
- Worthen Meadows0.9 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
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Stays near Worthen Meadows Reservoir
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Fishing Worthen Meadows Reservoir
Reservoir Info (USACE NID)
Worthen Meadows Reservoir is a man-made reservoir impounded by the Enlargement of Worthen Meadows (completed 1958), built primarily for water supply on the Roaring Fork Creek; earth-type dam, 46 ft tall and 850 ft long.
- Surface area
- 92 ac
- Normal storage
- 1,504 ac-ft
- Max storage
- 2,516 ac-ft
- Drainage area
- 12.7 sq mi
- Hazard class
- High
- Owner
- CITY OF LANDER
All listed purposes: Water Supply;Irrigation.
Source: USACE National Inventory of Dams, NID ID WY01058 · Operator website · Matched by proximity (0.13 km)
Nearby Lakes in Fremont County
Frequently asked questions about Worthen Meadows Reservoir
Where is Worthen Meadows Reservoir?
- Worthen Meadows Reservoir 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 Worthen Meadows Reservoir?
- Worthen Meadows Reservoir in Fremont County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 15.9 ft visibility. Phosphorus: 10 µg/L. Surface area: 92 acres.
Is Worthen Meadows Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Worthen Meadows Reservoir?
- The available depth estimate for Worthen Meadows Reservoir is shallower than its measured water clarity, which cannot be right, so no depth is shown. The lake covers 92 acres.
Are there boat ramps on Worthen Meadows Reservoir?
- Worthen Meadows Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Worthen Meadows Reservoir. Public access is listed as yes.
Can I fish at Worthen Meadows Reservoir?
- Worthen Meadows Reservoir has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Wyoming's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Worthen Meadows Reservoir?
- Worthen Meadows Reservoir has 2 public campgrounds from USGS The National Map within 5 km, including Worthen Meadow Campground, Worthen Meadows. 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.
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Where this data comes from
6 measurements from 1 monitoring station, 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_WATERSHED6 samples · 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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory
Public campgrounds from USGS The National Map Structures, within about 3 miles