Loading map...

2014 Map of Porters Flat

Name: 2014 Topographic Map of Porters Flat
Creator: U.S. Geological Survey
Published: 2014
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2014

About this map

The Snake River defines the border between Oregon and Idaho in this 2014 survey, winding past the agricultural flats of Malheur County. This riverfront landscape is dominated by a complex network of irrigation infrastructure essential for local farming, including the Galloway Canal, Domby Ditch, and Grimmet Lateral. Small rural settlements like Eaton and Jonathan are situated near the river, while West Weiser Flat and Porters Flat represent the developed floodplains that have historically supported the region's homesteads.

Rising above the irrigated lowlands, the terrain transitions into the high ground of Kelly Mtn and Haystack to the north. Named landmarks such as Porters Island and Rocky Point provide geographical anchors along the river valley. The map also traces established transportation routes like Olds Ferry Rd and the Olds Ferry-Ontario Hwy, which follow the river's path, connecting these isolated agricultural communities to the larger regional trade network.