According to the latest information available, the Lewis and Clark Trail boat ramp in Lemhi County, Idaho is a concrete boat launch that is 16 feet wide. It services the Salmon River, which is a popular destination for boating and fishing enthusiasts. The Salmon River is known for its rapids and is popular for whitewater rafting, kayaking, and other similar activities.

This boat ramp is suitable for small to medium-sized watercraft such as canoes, kayaks, rafts, and motorized boats. However, there are no specific restrictions mentioned regarding the type of craft permitted on the water, so it is advisable to check with the local authorities before launching any type of watercraft into the river.

Overall, the Lewis and Clark Trail boat ramp in Lemhi County, Idaho is a well-maintained concrete ramp that provides easy access to the Salmon River for boating and fishing activities. It is located in a scenic area, and visitors can enjoy breathtaking views of the surrounding landscape while launching their boats or enjoying a day on the water.