Developer website: National Geographic
TOPO! Explorer is both Mac and PC compatible. It's an entirely new way to get detailed topographic maps for hiking, cycling, backpacking, camping, hunting, fishing and more. Unlike our State Series or Weekend Explorer titles - TOPO! Explorer retail kits do not contain any pre-set maps. Instead the package comes with 25 map credits, which entitle you to download 25 SuperQuads from anywhere inside the United States.
Requirements
Mac OS X 10.5 or later