Erbe Grasslands was established in 2007 with an initial 64-acre parcel acquired from the Losenegger family. In 2012 and 2022, 36-acre and 40-acre parcels were added; acquired from the Ihm and Goplin families respectively. Grants to The Prairie Enthusiasts from the WI State Knowles-Nelson Stewardship Fund and the Dane County Conservation Fund helped make this possible.
At time of acquisition, the original 64-acre parcel consisted of 30 acres of treeless pasture (most of which was unplowed remnant prairie sod), 26 acres of active cropland, 5 acres of brush pasture, and a 3 acre walnut grove. The walnuts were likely planted in 1935 by the Civilian Conservation Corps (CCC) crew stationed in Mt. Horeb. They also built a retention dam on the property, that is still present today. Because a goal for the property is to provide critical habitat for grassland birds, the walnuts and much of the brush were removed in the winter of 2008-2009. The work was funded by the Wisconsin DNR Pheasant Stamp and Landowner Incentive Programs, along with funds from the Wildlife Conservation Society.
The 2012 36-acre addition consisted of 6 acres of cropland and 30 acres of an unplowed blend of degraded remnant prairie and overgrown oak savanna. The overgrown savanna and prairie are in the process of being restored, trees and brush have been removed, and the cropland has been planted to prairie. Grants from the US Fish and Wildlife Service and WI DNR Turkey Stamp Fund have assisted this work.
The 2022 40-acre addition consisted of high-quality remnant prairie, former cropland planted to prairie, and pastureland being restored to prairie. The Prairie Enthusiasts had been working with the landowner on the management and restoration of this parcel for 20 years.
In 2025, 77 acres of the Uren Trust farm were added to Erbe Grassland. The land was mostly farmland, but is being restored to prairie in the hopes of expanding the habitat for rare species like the State Endangered regal fritillary butterfly.
The site is within the Military Ridge Prairie Heritage Area, a cooperative conservation effort of federal, state, county, and private conservation groups.