Spillway Boat Ramp is the upper launch site for the Green River below Flaming Gorge Dam in Daggett County, Utah, providing public access to world-class fishing and float-trip opportunities.

Located at an elevation of 5,627 feet near the dam's visitor center, it serves as the primary put-in for paddlers and anglers accessing the scenic Green River float-in campsites downstream.

The ramp is managed by the State of Utah and is accessible via Little Hole Trail off Highway 191, making it a convenient starting point for multi-day river adventures through the Flaming Gorge National Recreation Area.