Ashland is a place just behind Valley Of The Hidden Dinosaur, the only place inside Dinosaur Valley that isnt covered in snow. When you find the road it will say Ashroad. Follow it. It will end at a barricade of snow and ice, saying The road to the Ashland is blocked. If you manage to do a glitch where you can get in, try to explore! The Devils Gap is in there too and theres a passage to it in Jarlaheim.