No. 123 - Large topographic map blockYour model is disabled. For more details go to Edit properties3D Model
This very large wooden block (32cm x 14cm) features a sequence of brilliant white alder boards inter-layered with thin veneer of cherry and quarter sawn English brown oak. The layers of veneer create the illusion of a topographic contour map on the carved surfaces.
The surface of this block is carved to reflect three major types of topographic landscapes. On the left side of the block are U-shaped, glacially carved valleys with hanging valleys, terminal & medial moraines, and even a horn. The center of the block features a dendritic pattern of V-shaped, river carved valleys. The right side of the block is carved to reflect an arid landscape with mesas and buttes. The block is cut by four, 1/8 inch thick layers that range in attitude from vertical to shallowly dipping. Students can use these planes to practice using intersections with contours to calculate strikes and dips.