Eastern Washington Columnar Basalt 1/48th scale

This is a rendition of rock outcroppings found in Eastern Washington that I am creating for a client in Issaquah, Washington, under contract for Hikel Trains and Layouts of Lynnwood, Washington. The client is a professor of forestry for the University of Washington and is well versed in geology as well. His three rail O-gauge model railroad is a hybrid of fiction and fact, modeling routes of the Spokane Portland and Seattle railroad and BNSF lines. A portion of the layout will have these columnar basalt pillars that quite amazing. This natural phenomenon are seen in many parts of the world and are quite amazing to see in person. I am using foam board, plaster cloth and plaster castings to create the columns,entablature and pillow basalt. I believe we will take a field trip to see in person the color variations of the rock and gather dirt samples and take photos. Finally, I plan to apply yellow static grasses to make it just right.