Study Site Locations

Blue Mountain

Bridge Creek


Devine Ridge

Five Creeks

Greenville Bench

Hart Mountain

Marking Corral

Moses Coulee




Saddle Mountain


Seven Mile

South Ruby Mountain

Spruce Mountain


Walker Butte

Roberts Site

Location: Jefferson County, northwest of Rogers, ID
Land Management Agency: Bureau of Land Management Upper Snake River Field Office
SageSTEP Site Manager: Maggie Gray
Plots: Four 200-acre core plots (Control, Burn, Mechanical, Herbicide)
Elevation: 4800-4860 ft
Topography: 0-10% slopes of all aspects
Common Vegetation: Wyoming big sagebrush, Sandberg bluegrass, Indian ricegrass, bluebunch wheatgrass, and cheatgrass
Soils: Fine- to coarse-loamy, mixed
Fire Regime: Historically, several decades. Many of these communities experienced an increased fire return interval with settlement and overgrazing. Cheatgrass invasion can cause larger fires and reduce this interval to 10 years or less.
Representative Land Base: Several million acres in western and central Utah, southern Idaho, northern Nevada, and eastern Oregon
Grazing: Plots are located on an active grazing allotment, and will be fenced for the duration of the study to exclude livestock.
Treatments Implemented: Fall 2007. For more information about treatments, click here.
Additional Information:

In July 2010, the Jefferson wildfire burned through the prescribed burn plot, mow plot, and part of the herbicide plot at the Roberts site. Data for 2010 had already been collected prior to the burn, and researchers are planning to use the wildfire as an opportunity to learn more about the effects of fuels treatments on wildfire behavior and subsequent recovery.

Jefferson FireJefferson Fire
SageSTEP study plots (left: prescribed burn, right: mow) that were burned by the Jefferson fire.

Click here to download the Roberts Site Fact Sheet (PDF, 247KB).

Roberts site map.