Claim: Shadelands Ranch, which was established by Hiram Penniman, is a 2.7-acre farm located at 2660 Ygnacio Valley Rd., Walnut Creek, California designed by Eckers & Sells.
Evidence: Shadelands Ranch was established by Hiram Penniman, an early American settler of California in 1856 as one of the first and largest farms in California's Ygnacio Valley. 2.7 acres (1.1 ha) 2660 Ygnacio Valley Rd., Walnut Creek, California Eckers & Sells