The Lone Rock Drift Boat Access is a boat ramp located in Oregon, specifically at latitude 43.31689072 and longitude -123.06116486. It is a drift boat access point for the Umpqua River.

The width of the boat ramp is not specified in the available information. However, according to the Bureau of Land Management's website, the boat ramp can accommodate up to 15 vehicles with trailers.

The Lone Rock Drift Boat Access services the Umpqua River, which is a popular destination for fishing and boating enthusiasts. The river is known for its steelhead and salmon runs, and is also popular for kayaking and whitewater rafting.

As the name suggests, the boat ramp is designed for drift boats, which are commonly used for fishing on the Umpqua River. Other types of boats may also be launched from the ramp, but it is primarily intended for drift boats.

It is important to note that information about boat ramps and their facilities can change frequently. Therefore, it is recommended to check with local authorities or the managing agency for the most up-to-date information before planning a trip to the Lone Rock Drift Boat Access.