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.

One of Northeast Iowa's greatest treasures is the Wilder Memorial Museum located in Strawberry Point, Iowa. Step back in time as you tour the Museum, discovering our extensive collections and fascinating exhibits. From an heirloom collection of over 800 dolls dating from the 1700's, Military artifacts from as early as the Revolutionary War, and an impressive collection of Victorian furniture and art glass. There is something for everyone!

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.

Hidden in the Turkey River valley, the Motor Mill Historic Site is a peaceful natural area that features a six-story limestone flouring mill and four related stone buildings dating from the late 1860’s. The site's mission is to protect and preserve the architectural integrity, history, natural beauty and serenity of the Motor Mill site and its surroundings.