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1994 Map of Conley
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1994 Map of Conley

USGS Topo · Published 1994

About this map

The Grande Ronde Valley is defined by a complex network of natural waterways and early irrigation infrastructure in this late twentieth-century study of Union County. The landscape is dominated by the meandering course of the Grande Ronde River and its interaction with the State Ditch, a significant hydraulic feature that straightened the river's flow through this fertile agricultural basin. Small settlements like Conley and Wright are positioned along a grid of rural roads, including Sandridge Road and Booth Lane, reflecting the region's enduring farming character. To the south, the Ladd Marsh Game Management Area preserves a substantial wetland environment around Ladd Marsh, where Ladd Creek and the Ladd Creek Pickup Ditch converge. This map captures the intersection of managed wildlife habitats and the aviation needs of the valley at the La Grande-Union County Airport.

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Map Details

Date Portrayed1994
Date Published1994
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.9 inches

Editions of this 1994 Conley Map

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

Historical Maps of Union County Through Time

84 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain