Oklahoma is flat, right? Except for a chunk of interesting geography called the Wichita mountains in southwestern OK near Lawton. The rocky 2000 foot promontories here are the result of a failed continental rift that filled with granite 500 million years ago, was covered with sediments of the inland sea, and was pushed up late in the Paleozoic.
A variety of wildlife, including bison (originally from the Jackson Hole herd) and elk, both of which had gone extinct here in the 1800s from hunting pressure, roam this almost 60,000 acre national wildlife refuge.
We managed a few hours stopover here on our way south to Texas. The wildflowers were blooming everywhere, especially the Indian Paintbrush and lupine, prairie dogs were sunning their new-born pups, and Blue-Gray Gnatcatchers were busily setting up territories.