Caves, Caverns and Karst

For over a century people from around the world have come to rural Central Kentucky to honor the humble beginnings of our 16th president, Abraham Lincoln. His early life on Kentucky's frontier shaped his character and prepared him to lead the nation through Civil War. Visit our country's first memorial to Lincoln, built with donations from young and old, and the site of his childhood home.

An oasis in the desert, Amistad National Recreation Area consists of the US portion of the International Amistad Reservoir. Amistad, a Spanish word meaning "friendship," is known for excellent water-based recreation, camping, hiking, and rich cultural history dating back nearly 5,000 years. Amistad is also home to a wide variety of plant and animal life both above and below the water.

Apostle Islands National Lakeshore, located at the northern tip of Wisconsin's Bayfield Peninsula, features 21 stunning islands, a scenic 12-mile shoreline along Lake Superior, and is located within the ancestral homeland of the Ojibwe people. Established in 1970, the park showcases picturesque sea caves, sandy beaches, and the largest collection of lighthouses in the National Park system.

The vast, wild landscape of Bighorn Canyon National Recreation Area offers visitors unparalleled opportunities to immerse themselves in the natural world, and experience the wonders of this extraordinary place. With over 120,000 acres, one can find an astounding diversity in ecosystems, wildlife, and more than 10,000 years of human history to explore.

Established in 1972, Buffalo National River flows freely for 135 miles and is one of the few remaining undammed rivers in the lower 48 states. Once you arrive, prepare to journey from running rapids to quiet pools while surrounded by massive bluffs as you cruise through the Ozark Mountains down to the White River.

High ancient sea ledges, deep rocky canyons, flowering cactus, and desert wildlife—treasures above the ground in the Chihuahuan Desert. Hidden beneath the surface are more than 119 caves—formed when sulfuric acid dissolved limestone leaving behind caverns of all sizes.

It was a journey of conquest filled with exploration, wonder - and cruelty. Inspired by tales of vast cities of gold, 339 European soldiers and over a thousand Aztec allies embarked on an epic journey through arid deserts and rugged mountains. They encountered rich traditions and brought new technologies. The resulting collision and combination of cultures reverberates today.

Craters of the Moon is a vast ocean of lava flows with scattered islands of cinder cones and sagebrush. We invite you to explore this "weird and scenic landscape" where yesterday's volcanic events are likely to continue tomorrow.

Cumberland Gap was the first great gateway to the west. Come follow the path of bison, Native Americans, longhunters, and pioneers. Walk where 300,000 people crossed the Appalachians to settle America. Explore 85 miles of trails and 14,000 acres of wilderness. Stand in 3 states at once. Explore a cave, see Hensley Settlement, or camp under the stars. Come find your connection to Cumberland Gap.

The richly diverse volcanic landscape of El Malpais (el-mal-pie-EES) offers solitude, recreation, and adventure. Explore incredible geologic features such as young lava flows, cinder cones, lava tubes, and sandstone bluffs. While some may see a desolate environment, people have been adapting to and living in this extraordinary terrain for generations. Come visit the land of frozen fire!

For thousands of years, groups of nomads used the caves above Cliff Dweller Creek as temporary shelter. In the late 1200s, people of the agricultural Mogollon (Southern Ancestral Pueblo) culture made it a home. They built rooms, crafted pottery and raised children in the cliff dwellings for one or two generations. By approximately 1300, the Mogollon had moved on, leaving the walls behind.

Entirely within the state of Arizona, the park encompasses 278 miles (447 km) of the Colorado River and adjacent uplands. Located on the ancestral homelands of 11 present day Tribal Communities, Grand Canyon is one of the most spectacular examples of erosion anywhere in the world—a mile deep canyon unmatched in the incomparable vistas it offers visitors from both north and south rims.