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1985 Map of Donnelly

Name: 1985 Topographic Map of Donnelly
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Donnelly and the adjacent settlement of Roseberry occupy the heart of Long Valley in this mid-1980s survey. The landscape is defined by the extensive waters of the Cascade Reservoir, which dominates the western half of the map and includes underwater contours based on earlier 1930s investigations. This era shows the community supporting both local agriculture and recreation, evidenced by a Trailer Park and Campground near the shoreline.

Water management is central to the valley's character, with an intricate network of irrigation including the West Fork Roseberry Ditch and the Center Canal moving water from the Gold Fork River. A historical transit corridor is preserved via the Old R.R. Grade running south toward Arling Hot Spr. The transition from the flat valley floor to the timbered slopes of the Payette Nat For is clearly marked to the east, where small streams like Laffinwell Creek and Davis Creek descend into the basin.