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1988 Map of Powell Plateau

Name: 1988 Topographic Map of Powell Plateau
Creator: U.S. Geological Survey
Published: 1988
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1988

About this map

Grand Canyon National Park dominates this late-twentieth-century landscape, centered on the massive prominence of Powell Plateau. The Colorado River flows through the western half of the map, carving a deep Gorge and creating treacherous water features like Deubendorff Rapids, Bedrock Rapids, and Specter Rapids. The intricate canyon systems are defined by numerous named tributaries, including Tapeats Creek and a series of sequentially named drainages such as Hundred and Twentyseven Mile Creek.

A series of high terraces and points provide vantage over the river valley, including Ives Point, Newberry Point, and Wheeler Point. To the northwest, the boundary of the Havasupai Indian Reservation meets the park at Thumb Mesa. The map records a complex network of topographical features from Steamboat Mountain in the northeast to the Alarcon Creek drainage in the southwest, illustrating the erosional architecture of the canyon prior to modern adjustments.