Question: When was the company responsible for delivering messages, newspapers, and mail in the Butterfield Overland Mail route?
Sentence (from "Willow Springs Station"): Willow Springs, also originally known as Alamos Springs was located west of the hills that line the east side of the Temecula Valley, on land of the Rancho Temecula, near Santa Gertrudis Creek on the low flood plain of Murrieta Creek, between Santa Gertrudis and Warm Springs Creek.
Relevant evidence: No