Damon Goodman, biologist with the U.S. Fish and Wildlife Service (left) and Dr. Stewart Reid from Western Fishes look for lamprey below the restaurants of downtown San Luis Obispo, California. The species disappeared from the San Luis Obispo Creek in 2011, returning in 2017 following the installation of a “lamp ramp” over the tidal weir. The cost of the materials was less than $315. Credit: John Heil/USFWS