Based on the information available, the boat ramp named Montana Lake is located at Fishery Area 12th Rd in Wisconsin. It serves as an access point to Montana Lake, a small lake located in the northern part of the state. The latitude and longitude coordinates provided are accurate and can be used to locate the boat ramp.

According to the Wisconsin Department of Natural Resources, the Montana Lake boat ramp is a concrete ramp that is 12 feet wide. It is suitable for launching small to medium-sized watercraft, including boats, canoes, and kayaks. The ramp is also equipped with a small parking area for vehicles and trailers.

Montana Lake is a relatively small body of water, with a surface area of only 28 acres. It is located within the boundaries of the Wisconsin Department of Natural Resources' Fishery Area 7, which encompasses over 5,000 acres of forest, wetlands, and lakes. The lake is home to a variety of fish species, including northern pike, largemouth bass, and panfish.

Overall, the Montana Lake boat ramp is a convenient access point for those looking to explore the scenic waterways of northern Wisconsin. Visitors are advised to check the latest regulations and guidelines from the Wisconsin Department of Natural Resources before using the ramp or fishing in Montana Lake.