Quaternary geology map of Santa Cruz Island

Detailed Quaternary surficial geology map of Santa Cruz Island within Channel Islands National Park. Map units depict east-west striking Santa Cruz Island Fault with older alluvium (Qoa) in solid yellow. Young fluvial deposits (Qyf) near Prisoners Harbor depicted in magenta. Large deep-seated landslides (Qls-DS) in yellow and gray diagonal pattern. Geology shown as transparency over liar-derived hillshade.