Lewis and Clark in the Rocky Mountains : the Lewis and Clark National Historic Trail commemorates one of our nation's grandest journeys of exploration. "This detailed map/brochure provides an historically accurate account of the Lewis and Clark Expedition through the Rocky Mountains of western Montana and east-central Idaho." Includes inset of the complete trail and list of places to visit. Lewis and Clark in the Rocky Mountains : the Lewis and Clark National Historic Trail commemorates one of our nation's grandest journeys of exploration. "This detailed map/brochure provides an historically accurate account of the Lewis and Clark Expedition through the Rocky Mountains of western Montana and east-central Idaho." Includes inset of the complete trail and list of places to visit.