The Santa Ysabel General Store was built in 1884 and includes a basement. One of the county's oldest buildings, it is the only general store built from adobe remaining in San Diego County.
Located on Highway 78 at the intersection of Highway 79.
Addendum, December 14, 2011:
The Santa Ysabel General Store has been purchased by SOHO San Diego and will be preserved as a visitor center.
San Diego Union Tribune article, December 14, 2011:
Santa Ysabel Store to Become Visitor Center