Southern Willamette Valley, southeast of Eugene/Springfield, between the Middle and Coast Forks of the Willamette River, central Lane County. Mount Pisgah (Howard Buford Recreation Area), is over 2,300 acres in size, consisting of grasslands, shrublands, woodlands, and a small amount of stream and streamside habitat. This white oak savannah is an Oregon Conservation Strategy Conservation Opportunity Area.
The grass/shrub open areas of the site comprise what may be the largest single concentration of the "Oregon" Vesper Sparrow (Pooecetes gramineus affinis) in the Willamette Valley (perhaps two dozen pairs). This subspecies of Vesper Sparrow is listed as "Critical" on the Oregon Department of Fish and Wildlife Sensitive Species list, and is considered by the U.S. Fish and Wildlife Service as a Bird of Conservation Consern in Bird Conservation Region 5.