To get there, most people use Wrentham Drive, then park along Vaca Valley Parkway or off of Wrentham Dr.
The Browns Valley Open Space is a wide expanse of land, hiking trails, and basalt boulders on the North side of Vacaville.
One of the most appealing features of the Open Space is the three large crops of boulders gracing the hillside. The Boxcar Woody Boulders, Hillcrest Boulders, and Woodcrest Boulders each have their own sets of problems, most of which range from V0-V5, offering an easy to adventurous climb depending on skill level. Make sure to check out our Guide to Bouldering in Vacaville ( link ) for more info about climbing these giants. The area isn't just for rock climbers, though, get an amazing workout exploring some of the most beautiful hill trails in Northern California and take in unbeatable views of the surrounding area from the upper reaches. Bonus points if you discover one of the Instagram-worthy swings in the hills!
We ask that visitors be courteous and careful of the surrounding ranches and wildlife while exploring, dogs should be kept on leash because of the presence of cattle, be watchful of rattlesnakes during warm weather, and please pack out any garbage.