Welcome to the Rangeland Resources Research Unit (RRRU). Our three-location Unit spans two states (Wyoming and Colorado), and two major grasslands of the western Great Plains.  The High Plains Grasslands Research Station, headquarters for the unit, is located on 2,870 acres of northern mixed-grass prairie near Cheyenne, Wyoming.  The 15,500 acre Central Plains Experimental Range near Nunn, CO lies 35 miles to the south-east of the Cheyenne, WY on native shortgrass steppe.  In Fort Collins, near Colorado State University, is the third location, the Crops Research Laboratory.

The Unit conducts research within two major research areas:  Conservation-Production Systems for semi-arid rangelands, and Global Climate Change.  Research includes vegetation and soil changes (transitions/thresholds) in plant communities; managing for multiple uses; range monitoring; invasive species; plant-animal interactions; and climate change impacts on rangelands. Scientists include: David Augustine, Dana Blumenthal, Terry Booth, Justin Derner, Feike Dijkstra, and Jack Morgan.

		Climate Change in Western Rangelands Symposium Highlights.			80th Anniversary of Research at High Plains Grasslands Research Station.
		Heterogeneity Workshop			NPA News & Events  Find out what's happening in the Northern Plains Area.

Contact Information

RRRU -ARS- USDA 8408 Hildreth Road Cheyenne, WY 82009

Phone:  307-772-2433 Fax:    307-637-6124

Webmaster: Pam.Freeman@ars.usda.gov