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Map of Alcova Reservoir
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IntermediateBoth

Alcova Reservoir

Wyoming, United States
Open Water suggested3–31 m depthBoth entry

Alcova Reservoir at a glance

Alcova Reservoir is a intermediate both dive site in Wyoming, United States with depths of 3–30.5 m (10–100 ft). Typically most favorable Sep · from 3 years of archive data. Divers commonly see Rainbow trout, Brown trout, and Walleye. Check the latest conditions and entry details before you go.

Wind model · graded 8h ago

Tap a factor for its source and model point

Site hazards: High-altitude dive profile; wind exposure on the open reservoir; boat traffic; past diver fatality reported.

Read the full hazards ↓

Dive windows this week

Best: Sat
Tue6:00–21:00
Wed6:00–20:00
Thu6:00–21:00
Fri6:00–21:00
Sat6:00–21:00
Sun7:00–21:00
Mon

Favorable windowModerate window— no window

First light 5:23 · Sunrise 5:55 · Sunset 20:31

Source: Open-Meteo wind · graded 8h ago

Forecast only — always assess conditions on site.

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

What Divers Say

Known for: Rainbow trout, Brown trout, Walleye
Best time: June through August.

Based on community reviews and site data. Conditions vary — always verify before diving.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan53% 15 kn
  2. Feb24% 19 kn
  3. Mar34% 17 kn
  4. Apr50% 15 kn
  5. May53% 14 kn
  6. Jun41% 15 kn
  7. Jul53% 14 kn
  8. Aug47% 14 kn
  9. Sep64% 13 kn
  10. Oct53% 13 kn
  11. Nov37% 16 kn
  12. Dec35% 16 kn

September hastypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.

Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

  • Rainbow troutCommonly seen
  • Brown troutCommonly seen
  • WalleyeCommonly seen
  • Yellow perchCommonly seen
  • CrayfishCommonly seen

Fills & rentals nearby

No dive shops mapped within 25 km. Know one? Add it to the map.

Site details

A roughly 2,470-acre reservoir about 30 minutes southwest of Casper on Highway 220, around 100 feet deep, and the most accessible regularly dived site in central Wyoming. The dam area and Sandy Beach generally have the best visibility from June through August. The rocky bottom is stocked with trout, walleye and perch, and freshwater crawfish are common. Best accessed by boat, though some shore entries require only a short walk with gear.

boatshore

High-altitude dive profile; wind exposure on the open reservoir; boat traffic; past diver fatality reported.


Reviews

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