General Information: In 1807-1808 John Coulter explored the area now known as Union Pass on his way to Yellowstone. He was the first white man known to cross the pass. In 1860 Captain William F. Reynolds' part of the US topographical Engineers named the crossing as Union Pass.

The Dubois-Union Pass Corridor is one segment of a three-pronged complex of historic trails that converge in the area of Union Pass from Pinedale, Jackson and Dubois regions. Union Pass is a National Forest Register Historic Place on the Continental Divide and is located at the northwest end of Wind River Mountain Range in northwestern Wyoming. The pass is at an elevation of 9210 feet.

Three different mountain ranges rise in the distance to heights of 13,000 feet or more. They are the Wind River and Gross Ventre Ranges to the southwest and the Absaroka Range to the north. The main mountain passes visible from the pass are Union Peak to the east, Triple Divide Peak to the southeast, rims of the Roaring Fork Plateau to the south and parts of Ram's Horn to the north.

Elevation: 9,210 Feet

Distance: 15 Miles

Directions: From Dubois, This road is accessible by traveling nine miles northwest Dubois on US 26-287 to the marked Union Pass. Follow Union Pass road 15 miles to an interpretive site complete with a short nature walk that explains in part the surrounding area.

Visitor Information

Contact Wildernet