Flat Lake
Apache Trout • Black Sea Bass • Brook Trout and 3 more species
Flat Lake is a scenic fishing destination located in the beautiful Uinta National Forest of Utah, USA. The lake covers an area of about 15 acres and has a maximum depth of 25 feet. The area is popular among anglers due to its abundant fish species and breathtaking scenery.
Some of the prevalent fish species found in Flat Lake include rainbow trout, brook trout, cutthroat trout, and tiger trout. The fishing season runs from late May to early October, and the best fishing times are early in the morning or late in the evening. Fishing is typically done using flies, spinners, or bait.
Aside from fishing, visitors can enjoy a variety of other activities, such as hiking, camping, and picnicking. The lake is also near other popular attractions, such as the Mirror Lake Scenic Byway and the Provo River.
Fishing tips for Flat Lake include using small lures or flies that mimic local insects, fishing near drop-offs or underwater structures, and avoiding bright colors or loud noises that may spook the fish. It is also important to practice catch and release to preserve the lake's fish population.
The best time to visit Flat Lake is during the summer months from June to August, with average temperatures ranging from 76°F to 80°F. It is important to note that the weather in the area can be unpredictable and visitors should be prepared for sudden changes in temperature or weather conditions.
Get driving directions.

Weather Outlook
Fish Species
Apache Trout
The apache trout is considered to be critically endangered by the IUCN.
Black Sea Bass
Black sea bass are hermaphrodites; most begin their lives as females and change to males.
Brook Trout
The brook trout is one of the most popular game fishes in northeastern North America.
Cutthroat Trout
Cutthroat trout are the most widely distributed of all the western trouts of North America.
Rainbow Trout
The rainbow trout is an extremely valuable species in any and all of its forms.
Tiger Trout
The tiger trout is a cross between a female brown trout (Salmo trutta) and a male brook trout.
Area Streamflow Levels
Streamgauge | Discharge |
---|---|
Sevier River At Hatch | 96 cfs / 1.19 ft |
Mammoth Creek Abv West Hatch Ditch | 28 cfs / 1.30 ft |
Muddy Creek Near Emery | 11 cfs / 4.62 ft |
Salina Creek Near Emery | 11 cfs / 2.56 ft |
Sevier River Near Kingston | 175 cfs / 4.54 ft |
Clear Creek Above Diversions | 16 cfs / 3.59 ft |
Seven Mile Creek Near Fish Lake | 10 cfs / 4.27 ft |