I've been there and there is TONS of it. Really fun to collect at.Cool dude. Can't tell you anything about the petrified wood, but ruby(corundum) looks like it could have come from Montana, but most likely Sri Lanka. The obsidian is actually snowflake obsidian due to the cristobalite inclusions. You can find it in between Milford & Delta here: https://goo.gl/maps/6s4TpYLhuFKsM6ht6