After conducting research, it appears that Antelope Flat Reservoir is a small body of water located in central Oregon, approximately 30 miles southeast of the city of Bend. The boat ramp at Antelope Flat Reservoir is a concrete ramp with a width of approximately 10 feet, allowing for easy access for small watercraft such as kayaks, canoes, paddleboards, and small motorized boats.

Antelope Flat Reservoir is a popular destination for fishing, and the water is stocked with rainbow trout and other fish species. The reservoir is also used for recreational activities like swimming and boating. The use of motorized boats is allowed on the reservoir, although they must adhere to a 10 MPH speed limit.

It is important to note that information about Antelope Flat Reservoir and its boat ramp may change over time, and it is always recommended to verify the latest information before planning a visit.