State Parks

The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.

Nevada's second-newest state park offers camping, fishing, hiking, and river float trips.

More than 12,000 years ago, this park was a playground for mastodons.

This unique landscape is the only place in the world to dig for hourglass-selenite crystals.

Florence's historic adobe county courthouse was turned into a historic site that honors one of Arizona's most prominent political leaders.

Multiple waterfalls and several historic CCC buildings anchor this state park in Oregon's Willamette Valley.

Named for a prominent scout and explorer, this Wyoming state park encompasses a replica of an 1840s trading post, a 19th-century Army outpost, and early 20th-century automobile lodgings.

Stand at the point where the two mightiest rivers in the United States converge.

Long before Europeans arrived, Native Americans built an artificial island out of shells that has withstood a millennia of hurricanes.

The source of America's longest river is also a historical landmark and the start of a famous nude run.

An immense cave that has served as an outlaw's treasure trove, an underground dance hall, a nuclear fallout shelter, and much more.

Explore the cabin where the famed abolitionist once lived and the site where he fought the Battle of Osawatomie.

Over 140 boathouses built by miners from the Soudan Iron Mine in the early 20th century overlook Stuntz Bay on Lake Vermilion.

This canyon is named for a unique geologic formation where the river vanishes underground near the mouth of the canyon and reappears farther down.

These dramatic cola-colored falls have appeared in a poem by Henry Wadsworth Longfellow and a song by Sufjan Stevens.

A wonderland of caves in eastern Iowa.

This park is home to a massive bird sanctuary.

This functioning mill was built in the 1970s using parts from several other West Virginia mills.