After conducting some research, the Copper Ramp boat ramp is located in Josephine County, Oregon. It is situated on the eastern shore of the Applegate Reservoir, which is a man-made lake created by the Applegate Dam on the Applegate River.

According to the Bureau of Land Management's website, Copper Ramp is a concrete boat ramp that is 20 feet wide and has a maximum slope of 15%. This means that it can accommodate most types of recreational boats, including small motorboats, pontoon boats, and fishing boats.

As for the body of water it services, the Applegate Reservoir covers over 988 acres and has a maximum depth of 242 feet. It is a popular destination for fishing, boating, swimming, and other water activities. The reservoir is stocked with rainbow trout, largemouth bass, and other fish species.

Based on this information, it appears that Copper Ramp is a well-maintained and accessible boat ramp that can handle a variety of watercraft. Users should always check for any updates or changes to regulations before heading out on the water.