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1989 Map of Illahee Rock, 1990 Print
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1989 Map of Illahee Rock

USGS Topo · Published 1990

About this map

The Umpqua River snakes through a landscape defined by dramatic geological formations and early hydroelectric development. The Soda Springs Power Plant sits along the river's northern bank, marking a point of industrial utility amidst the protected reaches of the Umpqua National Forest. To the north, the Boulder Creek Wilderness preserves a series of drainage basins, including Onion Creek and Rattlesnake Creek, which descend from high points like Harding Butte and Illahee Rock. Cultural significance is evident at the Dog Creek Indian Caves and the small settlement at Illahee, situated near the river's bend. Low-lying areas like Illahee Flats and Oak Flats provide rare level ground between the ridges, while crossings like the Marsters Bridge and various gaging stations reflect the ongoing management of this river corridor.

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Map Details

Date Portrayed1989
Date Published1990
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.9 x 26.8 inches

Editions of this 1989 Illahee Rock Map

This is the sole edition of this map. No revisions or reprints were ever made.

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain