Our last “base camp” during the trip in eastern Montana was in Medicine Rocks State Park. Medicine Rocks is a series of sandstone pillars with eerie undulations, holes, and tunnels in them. The rocks are considered a sacred holy place by Plain Indians. Archaeological evidence indicates that there has been human habitation at or near Medicine Rocks for about 11,000 years. Many Indian tribes resided there permanently or temporarily. (source: Wikipedia)
I could write a lot more about a place like this but I trust you know where to find more information if you are interested. All what I can say is, it is a photographer’s paradise for landscape and night photography.
On a sunny day the hours around sunrise and sunset are again your best times for exploring this 330 acres (130 ha) area with the camera.