Six miles north of the Roosevelt Arch in Gardiner, Montana, runs Reese Creek which marks the northern boundary of Yellowstone National Park. This area is barely explored, and most people who come to Yellowstone don’t realize this dirt road, called Old Yellowstone Trail, is part of Park. Let’s walk toward Electric Peak among the sagebrush and along the creek. April is barely springtime in Yellowstone, but let’s see what we can see in the spaces between arid and water.