Moin moin dude
Let's make it easier

(maybe you have more Terrain questions in this case and I think this can help you ( I can't attach it so do the following: )
1: Download and install the WEU:
http://www.wc3c.net/tools/weu/
2: After Install go to the folder: TerrainArt (In the WEU folder) - there you see an excel document - open it
3: There you can see all terrain arts and everything you need to now about it ^^
4: If you don't have any office on your pc - you can download "Open Office" - it's small, fast and easy
Greetings
~ The Bomb King > Dr. Boom