These grasslands provide one of the best remaining examples of Willamette Valley savanna habitat, with a small colony of Grasshopper Sparrow plus nesting Vesper and Savannah Sparrows, Western Kingbird, Streaked Horned Lark, Western Meadowlark, and Lazuli Bunting. In winter watch for Prairie and Peregrine Falcons, Rough-legged Hawk, Short-eared Owl and Northern Shrike, with Northern Harrier and Red-tailed Hawk year-round. Golden Eagle nests in the Coburg Hills just E of here and occasionally soar over the grasslands. All of these lands are private ranch land, so stay to the public right-of-way along the roads.
From I-5 Exit 209: Go E on Diamond Hill Dr for 2.7 mi, to where Gap Rd comes in from the S. Stay to the L on what is now Gap Rd and continue 1.5 mi (Gap Rd will curve to N) to the intersection with Belts Rd. After scanning grasslands on private land to NW of intersection, you can take side loop described below, or continue N along Gap Rd to Brownsville. Side loop directions: From intersection of Gap and Belts Rds, go W 1.0 mi on Belts Rd (gravel), then N 1.3 mi where road becomes Tub Run Rd and curves to W. Continue W 1 mi to T intersection with Bond Butte Rd. Go S 0.7 mi to T intersection with Belts Rd. Turn L and return to start of loop at intersection with Gap Rd (2 mi).