In 1804, Meriwether Lewis & William Clark began a voyage of discovery with 45 men, a keelboat, two pirogues,and a dog. They departed from Camp Wood located in what was to become Illinois. They traveled over a three-year period through lands that later became 11 states. Most of the trail follows the Missouri & Columbia Rivers. Much has changed in 200 years but trail portions remain intact. At 3700 miles, Lewis & Clark NHT is the second longest of the 23 National Scenic & National Historic Trails. It begins at Hartford, IL & passes through portions of MO, KS, IA, NE, SD, ND, MT, ID, OR, & WA. Many people follow the trail by auto; others find adventure in the sections that encourage boating, biking, or hiking. You can still see the White Cliffs in Montana as Lewis & Clark did. You may stand where they stood looking over the rolling plains at Spirit Mound in South Dakota. You might meet the descendants of the people who hosted Lewis & Clark all along the trail. It remains for your discovery.

Prehistoric mounds are common from the plains of the Midwest to the Atlantic seaboard, but only in this general area was there a culture that regularly constructed mounds in the shape of mammals, birds, or reptiles. The monument contains 2,526 acres with 195 mounds of which 31 are effigies. The others are conical, linear and compound. Eastern Woodland Indians built mounds from about 500 BC until the early European contact period. Natural features in the monument include forests, tallgrass prairies, wetlands and rivers. The visitor center, located at the park entrance, contains museum exhibits highlighting archaeological and natural specimens, an auditorium and book sales outlet. The park has eleven miles of hiking trails. No roads exist in the park. Rangers give guided hikes and prehistoric tool demonstrations, June 11 through Labor Day weekend. Educational programs are presented on- and off-site by appointment. There are no lodging or camping facilities in the park. Nearest camping is at Pikes Peak State Park and Yellow River State Forest in Iowa and Wyalusing State Park in Wisconsin. Various primitive campgrounds exist in the area as well.

Herbert Hoover National Historic Site in West Branch was established to commemorate the life of the 31st President of the United States. The Historic Site contains the cottage where Hoover was born, a blacksmith shop similar to the one owned by his father, West Branch’s first one room schoolhouse, the Friends Meetinghouse where the Hoover Family worshipped, and several homes of the era. Also located on the grounds are the Herbert Hoover Presidential Library-Museum, the Hoover Presidential Library Association, the gravesites of the President and Mrs. Hoover, and an 81-acre tallgrass prairie.

Led by Brigham Young, roughly 70,000 Mormons traveled along the Mormon Pioneer Trail from 1846 to 1869 in order to escape religious persecution. The general route is from Nauvoo, Illinois, to Salt Lake City, Utah, covering about 1,300 miles. The Mormon Pioneer Trail travels through five states over both public and private land.