Lewis and Clark pass is an exception to the rule that highways follow old Indian pathways. No highway or road crosses this pass today. It is the only pass that Lewis and Clark used that was not later traversed by a road. While the approaches to Lewis and Clark Pass are much easier to traverse from the Blackfoot drainage to the Dearborn drainage, Rogers Pass located 5.3 miles (8.5 km) to the southwest was more than 800 feet (244 m) lower than Lewis and Clark Pass, and modern highway construction and engineering methods favored Rogers Pass over Lewis and Clark Pass for highway construction. Therefore, Rogers Pass is traversed by Montana Highway 200, connecting the cities of Great Falls and Missoula, Montana.