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1990 Map of Merced Peak

Name: 1990 Topographic Map of Merced Peak
Creator: U.S. Geological Survey
Published: 1990
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1990

About this map

Merced Lake and the high alpine drainage of the Merced River anchor this 1990 survey of the central Sierra Nevada. The landscape is defined by the high peaks of the Clark Range, including Mount Clark and Merced Peak, where drainage systems like Illilouette Creek and Ottoway Creek begin their descent toward the valley floor. Evidence of the region's glaciation is visible at Moraine Dome and within the narrow confines of Little Yosemite Valley.

Human presence is marked by a network of seasonal outposts and historic transit corridors. The John Muir Trail traverses the northern reaches, connecting the Merced Lake High Sierra Camp and the Merced Lake Ranger Station to the broader wilderness. The map details a transition across the Mariposa and Madera county line, where the high-altitude environment of Yosemite Wilderness is dotted with remote water bodies like Lower Ottoway Lake and Adair Lake.