Track Below Terrain

This old dummy needs some help. Probably did it basackards, but here goes.
I laid a considerable amount of tracks on a flat surface. Now I want to add some terrain binimage files.
After I paste the terrain bin image files in the route the track appears way below the terrain.
The terrain is all there and the route loads with no problem. Its just that they are at way different elevations.
Anyone have a solution to this problem
I laid a considerable amount of tracks on a flat surface. Now I want to add some terrain binimage files.
After I paste the terrain bin image files in the route the track appears way below the terrain.
The terrain is all there and the route loads with no problem. Its just that they are at way different elevations.
Anyone have a solution to this problem
