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Map of Flaming Gorge Reservoir (Cart Creek Bridge / Mustang Ridge)
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IntermediateBoth

Flaming Gorge Reservoir (Cart Creek Bridge / Mustang Ridge)

Utah, United StatesDirections
Open Water suggested3–31 m (10–100 ft) depthBoth entry

Flaming Gorge Reservoir (Cart Creek Bridge / Mustang Ridge) at a glance

Flaming Gorge Reservoir (Cart Creek Bridge / Mustang Ridge) is an intermediate both dive site in Utah, United States with depths of 3–30.5 m (10–100 ft). Typically most favorable Nov · from 3 years of archive data. Divers commonly see Smallmouth bass, Crayfish, and Kokanee salmon. Check the latest conditions and entry details before you go.

Favorable window now· until 19:00 · sunset 18:22

Wind forecast for this hour · 16:00 · run 5 h ago
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Tap a factor for its source and model point

Site hazards: Cold water and sharp thermocline (near-blackout below ~90 ft); essentially unlimited depth on the walls; significant altitude (~6,000 ft); motorized boat traffic (dive flag required); remote location.

Read the full hazards ↓

Dive windows this week

Lightest wind: Tue
Sun12:00–19:00 favorable

6 kn wind (6 kn wind)

Mon8:00–15:00 favorable, 15:00–16:00 moderate

9 kn wind (9 kn wind)

Tue8:00–19:00 favorable

4 kn wind (4 kn wind)

Wed8:00–13:00 favorable, 13:00–18:00 moderate, 18:00–19:00 favorable

8 kn wind (8 kn wind)

Thu8:00–19:00 favorable

7 kn wind (7 kn wind)

Fri8:00–19:00 favorable

8 kn wind (8 kn wind)

Sat8:00–19:00 favorable

7 kn wind (7 kn wind)

Favorable windowModerate window— no window

Every forecast dive window each day, site-local time, from wind forecasts. Numbers under each bar are daylight averages.

First light 7:12 · Sunrise 7:40 · Sunset 18:22 · some windows run past sunset

Source: Open-Meteo wind · updated 25 Oct, 11:22 GMT-6

Forecast only — always assess conditions on site.

Compare this weekend’s windows near Flaming Gorge Reservoir (Cart Creek Bridge / Mustang Ridge)

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.

Dived here today — did the forecast match?

What Divers Say

Known for: Smallmouth bass, Crayfish, Lake trout
Best time: July through September for warmest surface water (60-68 F) and stable weather.

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. January, 86% of days have historically been favorable, wind has typically been 9 knots
  2. February, 80% of days have historically been favorable, wind has typically been 10 knots
  3. March, 72% of days have historically been favorable, wind has typically been 11 knots
  4. April, 68% of days have historically been favorable, wind has typically been 12 knots
  5. May, 61% of days have historically been favorable, wind has typically been 13 knots
  6. June, 59% of days have historically been favorable, wind has typically been 13 knots
  7. July, 65% of days have historically been favorable, wind has typically been 13 knots
  8. August, 85% of days have historically been favorable, wind has typically been 11 knots
  9. September, 78% of days have historically been favorable, wind has typically been 11 knots
  10. October, 83% of days have historically been favorable, wind has typically been 10 knots
  11. November, 87% of days have historically been favorable, wind has typically been 9 knots, historically most favorable
  12. December, 85% of days have historically been favorable, wind has typically been 8 knots

November has typically 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

Rough labels: “Commonly seen” usually means two or more recorded sightings near this site in public dive logs (GBIF), “Occasionally seen” one; “Seasonal” and “Rarely seen” come from dive-guide research. Not a measured rate.

Fills & rentals nearby

No dive shops mapped within 25 km (16 mi). Know one? Add it to the map.

Data updated June 2026

Site details

A huge, deep, clear reservoir on the Green River near Dutch John with some of Utah's best freshwater visibility (20-40 ft). Established dive areas near the dam include the Cart Creek Bridge wall dive, Mustang Ridge, the Visitor Center shoreline, and the islands (Osprey/Gilligans) with walls and pinnacles. The reservoir is over 400 feet deep in places, so divers pick their depth on the walls; below the thermocline it gets dark quickly.

boatpinnacleshorewall

Cold water and sharp thermocline (near-blackout below ~90 ft); essentially unlimited depth on the walls; significant altitude (~6,000 ft); motorized boat traffic (dive flag required); remote location.

Reviews

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