2023 Map of Rex Reservoir

About this map

Fishlake National Forest dominates this high-altitude landscape in Sevier County, where a complex network of forest trails and water sources defines the terrain. The central drainage of Lost Creek is joined by Little Lost Creek and Sweet Water Creek, feeding into the irrigation-critical Rex Reservoir. This survey highlights the local nomenclature for the series of plateau-like flats that step across the region, including Hearthstone Flat, Pinenuts Flat, and Teah Flat. The presence of several distinct springs such as Fallon Spring, Flowell Spring, and Prowse Spring indicates the vital importance of water management in this high-country environment. The trail system, specifically the Brush Trail Paiute (D-4), reveals the routes utilized for both commerce and access through the steep transition from Black Mtn down to the named drainages like Dipping Vat Draw.