Crossing the county line north of Jeffrey City, the horizon opens into empty sagebrush flats that look deceptive on two-dimensional state road maps. What appears flat from an interstate highway is actually an undulating corrugated basin of red clay and hardpan shale carved by spring runoffs.
Reading the High Desert Grade
When you leave the two-lane highway for the unmarked BLM feeder tracks, the vehicle shifts into a steady hum against washboard ruts. You must pay attention to the color of the dirt: white caliche dust is firm, but reddish depressions often conceal soft silt that swallows passenger tires after an afternoon thunderstorm.
Carrying ten gallons of municipal water and a full-size spare tire is not an optional precaution in this quadrant. You can drive for four hours without encountering another truck or passing a ranch homestead with active power lines.
Late Afternoon Light on Granite Outcrops
Around four o'clock, the sun drops behind the southern spine of the Wind River Range, casting long charcoal shadows across the sage flats. The temperature drops twenty degrees in less than an hour as the wind rises off the Continental Divide.
Pull the truck off the easement onto the rocky turnout near the dry creek bed. Take a notebook and record the ridge profiles before the ambient light collapses into indigo twilight; this kind of terrain requires patience to truly observe.