If you mean heightmaps or the textures that are black and white then yes, first go to your content folder and put your height there, when you are in your level go to the top left, click on file then click on import, and then find the heightmap in your content folder.
Yeah i've got a height map and i''ve imported it. I was wondering if there was a way to import the texture file because when the map starts its just grass everywhere
go into the grass material, change the diffuse texture to your texture and make sure the diffuse is set to the size of your map.