SE corner of I-405 and State Hwy 133, 2 mi S of East Irvine, East Irvine,
CA ,
USA
California State Historical Marker
Juan Flores, who had escaped from San Quentin, was being sought by James Barton with a posse of five men. Near this mound, Flores surprised Barton and three of his men, all four were killed. When Los Angeles learned of the slaughter, posses were formed, and Flores and his men were captured.