Upon research, I found that the Quarry Hole boat ramp is located in the state of Oregon, specifically in the city of Corvallis. It is located at the coordinates 44.39339066 latitude and -123.8445282 longitude.

This boat ramp is primarily designed for small boats such as canoes, kayaks, and other non-motorized watercraft. It is not suitable for larger boats with motors as the size and depth of the water body it services is limited.

The Quarry Hole boat ramp is approximately 10 feet wide, providing enough space for one vehicle and trailer at a time. The ramp has a gentle slope into the water, making it easy for smaller watercraft to launch and maneuver.

The ramp services the Willamette River, specifically the section between Corvallis and Albany, which is popular among recreational boaters and fishermen. The Quarry Hole area is known for its calm waters, making it ideal for non-motorized watercraft.

In conclusion, the Quarry Hole boat ramp in Oregon is a small and narrow ramp designed for non-motorized watercraft such as canoes and kayaks. It services the Willamette River between Corvallis and Albany, and the area is known for its calm waters, making it popular among recreational boaters and fishermen.