Northern lights in Wyoming tonight

The northern sections of Yellowstone near Mammoth Hot Springs and the Lamar Valley give Bortle 2-3 sky at 2000-2200 m elevation. The Lamar Valley in the northeast corner faces north across open grassland with minimal horizon obstruction - a wide flat valley at 2000 m with no light pollution for 80 km in any direction. The Tower-Roosevelt area gives elevated ridge positions above the valley floor. Yellowstone is one of the largest dark sky areas in the lower 48 by total area. The north entrance via Gardiner, Montana stays open year-round.

The Teton Range sits at 43.7°N geographic, around 51° geomagnetic latitude, slightly south of Yellowstone but with equally exceptional darkness. The Jackson Lake shoreline faces north toward Yellowstone across 20 km of open water with the Teton peaks as a foreground silhouette. The Oxbow Bend area gives a flat north-facing water horizon. Bortle 2 in the backcountry and Bortle 3 at accessible lake positions. The combination of 2000 m elevation, extreme darkness, and the Teton skyline makes Grand Teton one of the most visually compelling aurora positions in the USA.

The Bighorn Mountains of north-central Wyoming rise to 4010 m (Cloud Peak) and sit 150 km east of Yellowstone. The east face of the Bighorns near Shell Canyon and the Cloud Peak Wilderness gives north-facing ridges at 2500-3000 m. Bortle 2 in the high wilderness sections. Highway 14A across the Bighorns gives accessible high-elevation positions. The Bighorn Basin to the west has minimal light pollution. A 3-hour drive from Billings, Montana or 2 hours from Casper.