At Las Trampas Creek, we found 4 pieces of PVC pipe, some with strips of letters taped to them.
Once assembled, the pieces formed a decoder (see bottom right picture). Then, all we needed to solve the puzzle was a ciphertext to decode, which we found (eventually) taped to the insideof one of the pipe pieces. Decoded, the ciphertext read: GO TO DINOSAUR HILL ON TOP OF PLEASANT HILL |