Devils Tower, Wyoming

"A geologic feature protrudes out of the rolling prairie that surrounds the Black Hills. The site is considered Sacred to the Lakota and other tribes that have a connection to the area. Hundreds of parallel cracks make it one of the finest traditional crack climbing areas in North America. Devils Tower entices us to explore and define our place in the natural and cultural world." 
http://www.nps.gov/deto/index.htm

"Did You Know?

When the proclamation establishing Devils Tower was published, the apostrophe was unintentionally dropped from “Devil’s”—and this clerical error was never officially corrected."