Sam takes us on a tour of fossilized shark teeth, sand dollars, sea biscuits, trilobites, dinosaur skulls, various ammonites, orthoceras plates, colorful fossil spheres, bookends, carvings and more unique items sourced from all over the globe. The Rock Stop, 1804 Highway 128, Philo Ca. Visit us in beautiful Mendocino Wine Country. Open Sat & Sun, 10am-4pm.