So I've seen these rocks sitting here for at least 4 years. I though maybe who used to live here owned them. But no apparently during excavation they were collected to be put back. But as you can see the house was condemned and rocks were left. Im assuming since this has beend left for years!!! There probably wouldn't be a problem taking them for a crawler course. There are alot of different sizes and types. I would like to get a load to bring down to pbr hobbies for the crawler/drift course, I need a truck if anyone can help drive I'll load. They aint going in my mazda, lol..