List of Slides for Theodore Roosevelt NP

• Entrance sign. Welcome!
• What the park looks like. Flat-lying Cenozoic sedimentary rocks of various types, including sandstone, siltstone, shale, lignite (brown coal) and limestone.
• "Cannonball" concretions can be seen in the park.
• Wondering what those are? Check out the explanation of concretions.
• More concretions.
• The Missouri River Valley runs through the park.
• Beyond the river, a storm approaches across the uplands.
• The sun disappears, for the storm is building up.
• Clouds overshadow the prairie uplands.
• Lightning flashes! Thunder crashes!
• Quiet is restored as the storm recedes from the park.
• Rain erodes shale of the Fort Union Formation.
• An old stream channel in the Fort Union Formation is now filled with shale.
• Petrified wood can be found in and on the slopes. Most pieces are sticks and twigs, but some stumps and logs are present too.
• Rain also causes slumping of blocks on hillsides, shown here along the highway.
• Want to know more about slumping?
• In a related process, bentonite creeps downslope along the Coulee Trail. Resistant caprock preserves the layers beneath.
• Did you know coal can burn underground?? Smoke rises through cracks in the earth. . .
• As a result, layers of clay are baked to form black or bright red clinker beds, with a texture like pottery.
• "Badlands" topography forms in part of TRNP, here showing the distinctive reddish color of coal layers.
• Stop for buffalo crossing the road!
• For crying out loud! That bison is eating my tent. Shooo. Go Away!
• Oh no! It's an attacking bison! HELLLLLPPPPPPPP!!!!!!
• Sunset over the park.