The Johnsrud Boat Launch is located in the state of Montana, at latitude 46.91492931000005 and longitude -113.67749109899995. It is a concrete boat ramp that is open year-round and provides access to the Blackfoot River. The ramp is relatively wide, with enough space for multiple boats to launch and retrieve at the same time.

This boat ramp is designed for use by a variety of watercraft, including motorboats, canoes, kayaks, and rafts. The Blackfoot River is known for its excellent fishing opportunities, and visitors to this area can expect to catch a variety of trout species, including rainbow, brown, and cutthroat.

According to the latest information available, the Johnsrud Boat Launch is a popular destination for outdoor enthusiasts and is well maintained by local authorities. Visitors to this area are encouraged to follow all posted rules and regulations, and to exercise caution when launching and retrieving their watercraft. Overall, the Johnsrud Boat Launch is a great place to explore the beauty of Montana's outdoors and enjoy some of the best fishing opportunities in the region.