Causey Reservoir is a 140-acre mountain lake situated at 5,700 feet elevation in Weber County, Utah. The reservoir features three distinct "fingers" branching out from the main body, with towering canyon walls rising over 100 feet above the water. No motorized boats are permitted, creating ideal conditions for paddling on typically smooth waters, though afternoon winds can be significant due to the canyon location.

Primary access points include the dam area and the Skull Crack trailhead at the south end. Both launch sites require a steep portage down gravelly shores, particularly as water levels drop during summer. The shoreline is predominantly steep and rocky, with limited areas for beaching watercraft.

The reservoir's emerald-green waters are fed by snowmelt, providing cool temperatures throughout summer. Each arm offers unique features: the north arm showcases red rock formations, while the south and east arms feature popular cliff jumping locations. During late summer, Kokanee salmon turn bright red and spawn in the tributary streams, creating a notable wildlife viewing opportunity. The reservoir is also stocked with trout.

Essential safety considerations include mandatory life jackets (with active enforcement), afternoon wind patterns, and steep drop-offs along the shoreline. There are no amenities at the reservoir - no restrooms, picnic areas, or drinking water. Parking is available by the dam and near the former Boy Scout camp, though lots fill quickly on summer weekends.

For day trips, the center finger running east to west from the main parking area offers the most scenic paddling, typically taking 1-2 hours to explore. The surrounding canyon features tall pine trees and dramatic rock formations, with occasional hiking trails accessible from the water. Early morning launches are recommended to avoid afternoon winds and peak crowds.

Access from Salt Lake City requires approximately one hour of travel, with the reservoir located 15 minutes east of Huntsville via Highway 39.