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2017 Map of Union

Name: 2017 Topographic Map of Union
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

The Union settlement sits at the eastern edge of the Grande Ronde Valley, where the flat agricultural basin meets the rising slopes of the Blue Mountains. This modern survey illustrates a landscape defined by water management and topography, showing how early irrigation infrastructure like the Catherine Cr Highline Canal, Prescott Ditch, and Eilert Ditch supports the valley floor. The town grid is clearly delineated, featuring the Union Cem on its eastern fringe before the terrain transitions into the steep ravines of Pyles Canyon and Dry Gulch.

Away from the valley floor, the land rises sharply toward the peak of Clark Mtn. High plateaus and natural water sources, such as Ramo Flat and Wigglesworth Spring, indicate a shift from intensive valley farming to upland grazing and wilderness. The persistence of named tracks like Curtis Draper Rd and Badger Flat Ln provides a clear view of how rural access has been maintained across this varied Oregon terrain.