1988 Map of Havasupai Point

About this map

Colorado River currents carve through Granite Gorge in this detailed 1980s look at the central portion of Grand Canyon National Park. The survey highlights a series of formidable whitewater features including Shinumo Rapids, Bass Rapids, and Serpentine Rapids, which define the river's path through the deep canyon floor. High above the water, the topography rises to distinctive promontories such as Havasupai Point and Walapai Point, while the Signal Hill Lookout Tower stands as a landmark of park oversight. The map provides clear evidence of early backcountry travel routes, specifically the Bass Trail descending toward the river and the long-distance Tonto Trail contouring above the gorge. Large geological features like the Hotauta Amphitheater and Monadnock Amphitheater illustrate the massive scale of erosion in the Sagittarius Ridge area.