 Archival photograph by Leo Hetzel (1877-49) of the sand spikes from Mount Signal (also known as El Cerro del Centinela), n.d., Courtesy of the Imperial Valley Historical Society Pioneers' Museum, Imperial, California |
|
Archival photograph by Leo Hetzel (1877-49) of the sand spikes from Mount Signal (also known as El Cerro del Centinela), n.d., Courtesy of the Imperial Valley Historical Society Pioneers' Museum, Imperial, California |