Blacktail Park Boat Ramp at Ririe Reservoir features a large concrete boat ramp with associated parking and day-use facilities, serving as the primary southern access point for the reservoir.

The site includes a marina with floating docks, boat fuel services, a swimming beach (the only designated swimming area on the reservoir), and a concession stand, making it a full-service recreation hub.

A $5 day-use fee ($10 on weekends, cash only) provides access to this developed facility, which is closed seasonally from December 1 to March 15 to protect wintering wildlife in the adjacent Tex Creek Wildlife Management Area.