U.S.A., Montana, Sweet Grass, Absaroka Range: Gallatin National Forest: East Fork Boulder River valley, ca 41 air mi SSW of Big Timber; from the Box Canyon Trailhead over the Lake Plateau to the Upsidedown Creek Trailhead on Forest Road 6639.
45.2484 -110.2291 NAD 83
45.2484° N, 110.2291° W; WGS 84, , GPS reading; T7S R12E S11 NE1/4; also South1/2 S12, SW1/4 S2, and South1/4 S3