2 Best Sights in Cody, Sheridan, and Northern Wyoming, Wyoming

A few miles east of Glendo State Park lies a vast stone quarry initially mistaken for the work of early Spanish explorers. Archaeologists later determined the site, known as the Spanish Diggings, to be the work of various indigenous tribes on and off for the past several thousand years. Tools and arrowheads carved from the stone quarried here, including quartzite, jasper, and agate, have been found as far away as the Ohio River valley. To see the diggings you'll have to drive through Glendo State Park.

Artifacts from early settlement days and the period when the Cheyenne–Deadwood Stage Line was in full swing are some of the displays at the Stagecoach Museum. You also can get information about the Texas Cattle Trail.