Historical Marker
Highgrove Hydroelectric Plant
Historical marker location:
Highgrove, California
( Marker is at the intersection of Iowa Avenue and Spring Street, on the right when traveling south on Iowa Avenue.)
Marker installed: 1991
The first European to set foot in California was Juan RodrÃguez Cabrillo, a Portuguese explorer sailing for the Spanish crown. He arrived in what is now San Diego Bay in 1542 and explored the coast for several months.