We arrived at Panorama Point, NE in the middle of the night. We paid our $3 entry fee and drove to the high point as the sign specifically references no hiking is allowed due to Bison. Apparently Bison are mean and spiteful and are chomping at the bit to maul any highpointers who wander into the west Nebraska ;-) Fun fact: I didn't see another car from 2:20am until 4:30am. It was a little crazy to drive for over two straight hours and not see a single other pair of headlights.