Based on the latest information available, the boat ramp named Lake County in Montana is a concrete boat ramp that is approximately 20 feet wide. It services the Flathead Lake, which is the largest natural freshwater lake west of the Mississippi River in the United States. The lake covers an area of approximately 191 square miles and has a maximum depth of 370 feet. The boat ramp is located on the western shore of the lake, near the town of Polson.

Flathead Lake is a popular destination for recreational boating, and a variety of watercraft are permitted on the lake, including motorized boats, sailboats, kayaks, and canoes. However, there are certain restrictions in place to ensure the safety of all users. For example, motorized boats are required to stay at least 200 feet away from shorelines and docks, and there are speed limits in place in certain areas of the lake.

Overall, the Lake County boat ramp is a convenient and well-maintained access point to one of Montana's most beautiful and popular bodies of water, and it offers a wide range of recreational opportunities for boaters and other outdoor enthusiasts.