Rocky Mountain Herbarium

The Rocky Mountain Herbarium is located in the Aven Nelson Building at 9th Street and University Avenue on the University of Wyoming campus in Laramie, Wyoming. The RMH is open Monday through Friday from 7:30 a.m. to 4:30 p.m. For more information, contact RMH Curator Ernie Nelson at, call (307) 766-4158 or visit the website at

The Friends of the Rocky Mountain Herbarium, a volunteer group, host occasional open houses and guest speakers. For more information, call (307) 766-2236 or visit the website at