The Santiam Marine Park boat ramp is located in Oregon at latitude 44.40045929 and longitude -122.73747253. It is a concrete boat ramp that provides easy access to the Santiam River. The boat ramp is wide enough to accommodate multiple boats at once, and it is well-maintained by the park authorities.

According to the Oregon State Marine Board, the Santiam Marine Park boat ramp services the Santiam River, which is a popular waterway for fishing, boating, and other recreational activities. The river flows through several towns and cities, including Stayton, Sublimity, and Albany.

All types of watercraft are permitted on the Santiam River, including motorized and non-motorized boats, kayaks, canoes, and paddleboards. However, boaters are advised to be aware of the river's current conditions and to follow all safety guidelines to ensure a safe and enjoyable experience.

In summary, the Santiam Marine Park boat ramp in Oregon is a well-maintained concrete ramp that provides easy access to the Santiam River. It is wide enough to accommodate multiple boats at once, and all types of watercraft are permitted on the river.