@jjwyatt posted:Looks great with nice before and after, Like the block wall. Did you make the block wall or if not curious where you sourced it from as have a few areas I am looking to do something similar. Thank you
The block wall I purchased off Ebay. It is made out of foam. You can get rigid or flexible. I have used both on the layout. It is about 1 inch thick to. They come primed in grey. Size for o scale is 14 inches by 7.5 inches. Easy to cut with knife or hacksaw blade. I do carve the stones on the top row so that it doesn't look like one long stone. Paint the desired color you like and weather. I tried carving my own out of pink foam and it never looked good. This has saved time. I also line the inside tunnels to, that can be seen. 
