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1969 Map of Midnight Mtn.

Name: 1969 Topographic Map of Midnight Mtn.
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Okanogan National Forest covers this high-elevation landscape, where a network of trails serves as the primary infrastructure for traversing the steep ridges and basins. The topography is defined by prominent peaks such as Midnight Mountain and Three A M Mtn, with drainage systems flowing through narrow canyons like Canyon Creek and Whistling Creek. The presence of Gardner Meadows and several high-country lakes, including Slate Lake and Little Slate Lake, suggests a region utilized for seasonal grazing and remote recreation during the late 1960s.

Transportation is limited to a system of Pack Trails and light roads concentrated along the Twisp River valley. This corridor provides access to recreational sites like Mystery Campground and Poplar Flat Campground, which reflect the early development of forest service infrastructure in this part of Washington. The map also records localized industrial activity in the form of a Borrow Pit, while features like Moraine Ridge document the geological character of this mountain terrain.