Aerial photographs and sketch map of a possible trench site along the SAF in the southeastern Carrizo Plain near the Northern Elkhorn Hills. The trench locations are only schematic. A) stereo pairs of photographs illustrating the setting of the site. B) detailed aerial photograph (rotated 90 degrees from above) and sketchmap of the site. The map and photograph show that the flat surface was abandoned recently (when the northwesternmost of the two small offset channels incised a new channel downstream from the SAF. Colluvial deposition along the northeast side of the uplifting pressure ridge will provide event stratigraphy. Aerial photographs courtesy of the Fairchild Aerial Photography Collection at Whittier College.