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According to the latest information available, the Wapanitia Primitive South Launch boat ramp in Oregon is a primitive boat ramp that provides access to the Deschutes River. It is located at latitude 45.14383759900005 and longitude -121.12556115799998.

This boat ramp is narrow and suitable for small boats and canoes. It is not recommended for larger boats or trailers. The ramp is unpaved and may be difficult to navigate, especially during periods of high water.

The Deschutes River is a popular spot for fishing, kayaking, and other recreational activities. The river is home to a variety of fish species, including trout, steelhead, and salmon. Anglers can fish from the shore or from a boat.

In terms of regulations, motorized boats are permitted on the Deschutes River, but there are restrictions in place during certain times of the year. For example, motorized boats are not allowed on the river during the salmon spawning season, which runs from October to December.

Overall, the Wapanitia Primitive South Launch boat ramp is a small, primitive ramp that provides access to the Deschutes River. It is suitable for small boats and canoes, and is a popular spot for fishing and other recreational activities.