Fly Fishing Green River - Section A (Flaming Gorge)

Fly fishing Green River – Section A (Flaming Gorge) is arguably one of the most famous and prolific tailwater fisheries in the American West. Located in Northeast Utah, directly below the Flaming Gorge Dam, this section flows through a dramatic canyon setting where sheer, red-rock walls meet crystal-clear water. As a world-class trout stream in the Green River Basin, Section A is the headwater of the remarkable fishery, defined by stable, cold water, abundant insect life, and a density of trout that few rivers can match. The scenic beauty, combined with the technical challenge of fishing a high-volume tailwater, sets the scene for a truly epic fly fishing experience.

As a classic tailwater, this section of the Green River is characterized by deep, consistent runs and long, glassy glides, punctuated by slow-moving pools and fast riffles. The water is gin-clear, making long leaders and precise presentations essential for success. The river maintains its cool, nutrient-rich flow year-round, courtesy of the deep-release waters from Flaming Gorge Reservoir, which provides optimal habitat for trout. The banks are primarily lined with willows and some desert scrub, offering limited shade but creating excellent structure for fish to hold, particularly along undercut banks and current seams. This high-desert canyon environment offers a spectacular visual backdrop for the abundant fish life.

The fishery is sustained by an incredible population of robust brown trout and dazzling rainbow trout. Fish size expectations are high, with many trout ranging from 16 to 20 inches. Trophy brown trout over 24 inches are caught with regularity, earning this section its reputation for quality as well as quantity. The consistent flow and reliable food source ensure the fish are healthy and hard-fighting. Fish behavior is typical of a heavily-pressured tailwater, requiring anglers to be stealthy and to match the hatch, but the rewards are massive: wild trout holding in predictable patterns along current breaks and in the deepest runs.

Hatch activity on Section A follows an almost year-round insect supply, but major hatches are the seasonal highlights. Blue-winged olives emerge heavily in April-May and again in September-October, especially on overcast days. Trico hatches are a significant summer event, providing challenging but rewarding dry fly fishing to rising trout in the early mornings. Caddis hatches are strong in June-July, and terrestrial patterns become important in late summer. Midges provide year-round opportunities, especially during winter months when other insects are dormant.

Wading is possible in limited areas and is best undertaken when the river flows are between the optimal range of 800 to 2,000 CFS. However, this entire section is floatable and is overwhelmingly fished from a drift boat. The Green River below Flaming Gorge is best known for its exceptional floating opportunities, with floatable flows ranging from a minimum of 800 CFS up to high-water periods that can reach 8,000 CFS. Floating allows anglers to cover miles of prime water and access deep runs and mid-river seams that are otherwise inaccessible. The sheer volume and power of the water require a good boat and experienced rower, but the floating strategy is essential for maximizing success on this vast river.

Access to Section A is straightforward via the road leading from the Flaming Gorge Dam Visitor Center and downstream along the canyon road. This section begins directly at the base of the dam and continues downstream for several miles. Boat ramps and developed access points, including the Little Hole recreation area, make putting a boat in easy. The nearest major commercial airport is Salt Lake City International (SLC), approximately a three to four-hour drive away, making it a destination fishery. Anglers should utilize maps to locate designated walk-in areas, though floating remains the primary method for experiencing the best of the river.

In summary, the Green River's Section A below Flaming Gorge is a legendary tailwater that combines incredible density, trophy potential for brown and rainbow trout, and a breathtaking high-desert canyon setting. The technical challenges and the sheer reward of catching wild, hard-fighting trout in this pristine environment cement its status as a must-fish destination for serious fly anglers seeking a truly world-class Utah experience.