This is part 1 in a 2 part series of how I use a new strategy to build a mountain for the upper level of my o scale model train layout. I use the following materials in this video:
3/4 inch plywood
2 inch foam core
Locktite
Hot Glue
ScultaMold
Plaster Cloth
Rock Molds - See video on my channel for this technique
Camo Brown Spray Paint