Glendo Reservoir Lacustrine Pelagic
Platte County, Wyoming23,320 acresView mapDirections
Wyoming DEQ publishes the water-quality measurements for Glendo Reservoir Lacustrine Pelagic. Here is what has been measured.
- Eutrophic
- Public access
- Limited data
Glendo Reservoir Lacustrine Pelagic in Platte County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 5.2 ft visibility. Phosphorus: 20 µg/L. Surface area: 23320 acres.
Glendo Reservoir Lacustrine Pelagic is a 23,320-acre productive, nutrient-rich eutrophic lake in Platte County, Wyoming. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 8 other monitored lakes in Platte County, Glendo Reservoir Lacustrine Pelagic ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Wyoming DEQ, last sampled 2018-09-05. Methodology: how these readings are compared.
What Glendo Reservoir Lacustrine Pelagic is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
- Big water23,320 acres
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 Glendo Reservoir Lacustrine Pelagic 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 Glendo Reservoir Lacustrine Pelagic
These are the measurements Wyoming DEQ publishes for Glendo Reservoir Lacustrine Pelagic, 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 5.2 ft. Phosphorus 20 µg/L. TSI 50.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 5.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 20µg/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. | 50 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Glendo Reservoir Lacustrine Pelagic
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
23,320 acres
Public access
Yes
Listed by Wyoming DEQ
No bathymetric survey has been published for Glendo Reservoir Lacustrine Pelagic, so its depth is not documented here.
Recreation & Access
- Glendo State Park - 1Public
- Glendo State Park - 2Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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Fishing Glendo Reservoir Lacustrine Pelagic
Water quality readings over time
3 seasons of samples on record (2012–2018). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Worsening2 years
Phosphorus
Stable0 µg/L/yr3 years
Reservoir Info (USACE NID)
Glendo Reservoir Lacustrine Pelagic is a man-made reservoir impounded by the Glendo Dam (completed 1958), built primarily for flood risk reduction on the North Platte River; earth-type dam, 196 ft tall and 2,096 ft long.
- Surface area
- 23,320 ac
- Normal storage
- 454,337 ac-ft
- Max storage
- 1,118,653 ac-ft
- Drainage area
- 15,545 sq mi
- Hazard class
- High
- Owner
- BUREAU OF RECLAMATION
All listed purposes: Flood Risk Reduction;Irrigation;Fish and Wildlife Pond;Recreation;Hydroelectric.
Source: USACE National Inventory of Dams, NID ID WY01291 · Operator website · Matched by proximity (0.56 km)
Nearby Lakes in Platte County
Frequently asked questions about Glendo Reservoir Lacustrine Pelagic
Where is Glendo Reservoir Lacustrine Pelagic?
- Glendo Reservoir Lacustrine Pelagic is a lake in Platte County, Wyoming. Its water-quality measurements are published by Wyoming DEQ and shown on this page as reported.
What is the water quality of Glendo Reservoir Lacustrine Pelagic?
- Glendo Reservoir Lacustrine Pelagic in Platte County, Wyoming has water-quality measurements published by Wyoming DEQ, shown here as reported. Water clarity: 5.2 ft visibility. Phosphorus: 20 µg/L. Surface area: 23320 acres.
Is Glendo Reservoir Lacustrine Pelagic safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Are there boat ramps on Glendo Reservoir Lacustrine Pelagic?
- Glendo Reservoir Lacustrine Pelagic has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Glendo State Park - 1, Glendo State Park - 2. Public access is listed as yes.
Can I fish at Glendo Reservoir Lacustrine Pelagic?
- Glendo Reservoir Lacustrine Pelagic has 2 documented boat landings 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.
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Where this data comes from
11 measurements from 1 monitoring station, 2012–2018. 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_WATERSHED11 samples · 2012–2018
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
Named boat-access points from the USGS National Boat Ramps inventory