Crook County(49) ► ADJACENT TO CROOK COUNTY Campbell County(14) ► Weston County(17) ► Carter County, Montana(8) ► Powder River County, Montana(7) ► Butte County, South Dakota(12) ► Lawrence County, South Dakota(137) ►
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Ancient rivers took millions of years to excavate Devils Tower. The waters carried away softer sedimentary rocks leaving behind the hard igneous rock called phonolite. This rock type is found here in northeastern Wyoming, and central Montana, but . . . — — Map (db m72588)
The Ft. Laramie treaties of 1851 & 1868 set aside the Black Hills for the Sioux, for as long as the grass shall grow and the river shall flow. Nevertheless, in 1874 Lt. Col. George Armstrong Custer was sent to investigate rumors of gold in the area . . . — — Map (db m42556) HM
Devils Tower, known as Bear's Lodge to Northern Plains Tribes, rises high above the Belle Fourche River, grasslands, and ponderosa pine forests. This major landmark of the Northern Great Plains has attracted people for thousands of years. Today, it . . . — — Map (db m34463) HM
The process began about 50 million years ago. Magma (molten rock) was injected into layers of sedimentary rock, forming the Tower one and one-half miles below the earth’s surface. It has since taken millions of years to erode away the surrounding . . . — — Map (db m72589)
Above ground, prairie dogs are usually looking for plants to eat, eating, or scanning for predators. At a warning bark, prairie dogs dive into a dark city of tunnels, where they spend more than half their lives. They play an important role in the . . . — — Map (db m71946)
The Tower and Black Hills area have been a gathering place and home to many people. Archeological discoveries show that native people lived here 10,000 years ago. As time passed, Arapaho, Cheyenne, Crow, Kiowa, Lakota, and Shoshone all developed . . . — — Map (db m72587) HM