When this trip was initially planned, I had convinced my parents that going to North Dakota would be an adventure. Of course, with little knowledge of the state, we were not quite sure what we would do. So, I did a little research.
On NPR, there is a broadcast of a show called "The Jefferson Hour." In listening to it on a regular basis, I learned that the show is broadcast from North Dakota. I perused the site and became intrigued with Theodore Roosevelt National Park, the Oxbow Overlook specifically. Dad had had enough driving for a while, so Mom and I hit the road to view this particular destination. The pictures below are some of the stops along the way.
Slumps are upper portions of a butte that have become so saturated that they slide down to a lower level of land in tact. If compared to the mound above it, the same levels of rock segregation can be found.
Cannonball concretions are formed as the soil and rock move and slump.
Cannonball concretions are formed as the soil and rock move and slump.