In 1929, a scrappy ten-year-old boy by the name of Ed Allison arrived at Secret Valley. Ed, in a sense, was an accidental visitor. He was originally living with his family in Sacramento. The family doctor thought he might have rheumatic fever and suggested Ed should live in a higher and drier climate. A family friend was Gilbert Menichetti who worked for the Southern Pacific Railroad at Karlo. It seemed an ideal location for Ed and off he went. Upon his arrival the first order of business was to rent Ed a horse for him to attend the Secret Valley school several miles away. Of course this allowed him to explore the surroundings of his new home. For some reason, old time Secret Valley resident, Pete Biscar, took Ed under his tutelage.

For a brief time, Ed attended school in Susanville, and one of his classmates was Francis Riddell. After time, Allison moved back to Sacramento. Lo and behold, Riddell’s family moved to Sacramento, and Ed and Francis attended school once again and became life long friends. Riddell would become a noted archaeologist. It was Allison who informed Riddell of a major prehistoric site known as Karlo. On July 13, 1996 at Susanville Riddell tape recorded an interview with Ed about his recollections of his time spent at Secret Valley. The following is an excerpt about an underground river and petroglyphs.

Riddell asked Ed about Pete Biscar.

Allison recalled, “Pete Biscar showed me different things of the whole Karlo area. What they were and everything. I told you about the time we, for instance, one of the rides we went on, we came back up on the northern part, up from the railroad, it was on the east side of the railroad, where we were riding back and my horse got skittish and I could not figure out why. Walked stiff legged you know and all this. I go something is wrong, I looked for a scent or something. I told Pete there is something wrong. He said yes, get off your horse and you will find out. He said go over there to that cone, a lava cone, a pile of rocks and put your ear down to it. I could hear this roar of noise. It’s an underground river under there. That’s why your horse felt it and that’s why it was skittish This was the type of things that Pete and I did.

Riddell then asked what about the petroglyphs?

Allison replied: “That was above his [Biscar] reservoir. There was a split in the canyon up there. I don’t remember whether it is a right or. left turn that we would take at that “Y” in the canyon floor, but then he stopped and showed me those petroglyphs. Of course, that was first time I ever experienced anything like that. They were still real legible, I thought. His comment was that those people were here . long before us. And that’s the types of rides that we do and how I became acquainted with old Pete.”

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