Mix 2 cups flour, 1 cup salt and 3/4 cup water. (Add a little water at a time). This should make a very thick dough. Add more flour if needed. Spread dough over map you've outlined on heavy cardboard or plywood. Shape mountains, valleys, plains, etc. You may dip fingers lightly in water to smooth out rough places in dough. Allow to dry and paint with tempra. This project is not for a rainy day because salt draws the humidity and your map runs. Don't forget a color key for your landforms.