The Rock carvings and the Dinosaur Bones are a pain. I've found them by just riding around. If you really want to find them all you will need to designate the time to each. There are maps out, but you feel good knowing you found them yourself. The murder maps are easier then you think. Just keep a close eye out on the side of roads when you get of the main paths there not easy to miss. Finally, I found the treasure maps this time around easier then in the original. As you ride around you will notice the main land scape easily after you look at the maps. Hope you find them.