A bronze statue of Sacagawea and her infant son, Jean Baptise Charbonneau, stands at Fort Clatsop, near the mouth of Columbia River in Oregon. (National Park Service photo/Ben Najera)
The Lewis and Clark National Historic Trail, 4,900 miles from Pennsylvania to Oregon, tells an epic story of two explorers and their crew who made their way across the continent nearly 220 years ago. They traveled through . . .