Following the elections on September 7, there was a gunfight resulting from a robbery of travelers to Bear Valley and Holcomb Valley on the pack trail in the Upper Santa Ana Canyon where the Santa Ana River runs out of the San Bernardino Mountains. It was suspected by Union men that secessionists had been the culprits, doing the robbery as part of a larger plan of robberies in the valleys of Los Angeles and San Bernardino Counties. However, no such plan materialized.