I used to work with a guy that grew up on the JA ranch in the TX panhandle. His father was ranch foreman for several decades. Sometime in the late teens or early 1920’s, his dad and another cowboy got caught in a blizzard and found a cave to wait out the storm. The cowboy he with found a complete teepee with poles that had been stashed inside. Long story short, the cowboy came back and took the teepee before his father could get it. He said he never saw the cowboy or the teepee again.