Zelma Reservoir is a medium-sized reservoir in southern Saskatchewan, located approximately 64 kilometres southwest of Humboldt. Its coordinates are 51°50′N 105°50′W. The reservoir covers roughly 930 acres with approximately 6.2 miles of shoreline, giving it a modest but workable footprint for paddlers exploring by canoe or kayak.

There is one boat launch on site, which provides the primary access point for anyone putting a vessel on the water. The surrounding area falls within the designated Zelma Reservoir Development Area, a provincially regulated zone that governs land use around the reservoir, including boat launching sites and docks, which must be approved by the minister responsible.

The reservoir is a stocked fishery managed under Saskatchewan's Central Zone fishing regulations. Species present include walleye, northern pike, lake whitefish, white sucker, and yellow perch. Fishing regulations as of the 2019 Anglers' Guide set walleye limits at 2, pike at 3, and perch at 10, placing the reservoir in Zone 3C. Paddlers sharing the water with anglers should be aware that fishing activity, particularly during open season from mid-May through March, may increase boat traffic on the reservoir.

The reservoir sits in the agricultural landscape of southern Saskatchewan's plains, typical of the region's flat to gently rolling terrain. Nearby communities include Watrous, Lanigan, and Humboldt, all of which can serve as supply points for trip preparation. No dedicated camping facilities are confirmed at the reservoir itself.

Given the prairie setting and the reservoir's relatively modest size, paddling here would be most practical during the warmer months, roughly May through September, when ice-free conditions prevail. Ice fishing reports have noted ice forming to at least 13 inches in winter, indicating the reservoir freezes solidly and is not suitable for open-water paddling during that period. Paddlers should factor in the open, exposed nature of prairie reservoirs, which can be subject to sudden wind changes and wave buildup with limited shelter along the shoreline.