This apparent sideswipe resulted in the lead locomotive of an Eastbound freight leaving the the rails and ending in the ditch. This accident happened in mid-1971 on the AT&SF mainline portion located near Carmenita, Cal. I do not recall the circumstance which led to my opportunity to photograph the incident, but it was most likely my observation of these damaged cars. I ask a friend recently to look-up M.P. 157 and he reported it is within the city of La Mirada. This makes sense to me as La Mirada is but a short distance East of Carmenita. I am sure of Carmenita because I recognize the oil tanks and the refinery tower visible in one of the photographs. I am a dyed-in-the-wool Union Pacific RR brand of foamer and I do not possess much AT&SF reference material. So, I am not sure, but strongly suspect the use of a steam powered derrick to clean-up this mess in 1971 was the last time, or nearly the last time, it was used thus on the AT&SF.