Battle, who died this spring at 95, spearheaded efforts in the 1970s to preserve the open space from development.

A slot canyon is formed over millions of years, beginning as a small crack in the Earth's surface, commonly limestone or sandstone, that is slowly and steadily eroded by water rushing through the ...

San Diego police were evacuating homes near the canyon along Montezuma Road, which was shut down in both directions. An evacuation point was also set up at the Allied Gardens Recreation Center ...