The La Pine plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
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La Pine’s center stands about 4,240 ft above sea level. Within three miles the land runs from 4,200 ft to 4,320 ft, a difference of 120 ft: gently rolling country. The highest named summit within 15 miles is Paulina Peak, about 7,940 ft, 13 miles east.
Under the town center the state geologic map shows Lacustrine and fluvial sedimentary rocks (clay, silt, sand), from the Pleistocene, less than 2.6 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 8×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 10 mi of the line.
Basalt, basaltic-andesite. Age: Pleistocene, less than 2.6 million years old. About 5 mi of the line.
Rhyolite, andesite. Age: Pliocene to Pleistocene, less than 5.3 million years old. About 3 mi of the line.
Basalt, andesite. Age: Miocene, 5.3 to 23 million years old. About 0.9 mi of the line.
Basaltic-andesite, basalt, andesite. Age: Miocene, 5.3 to 23 million years old. About 0.8 mi of the line.
Basalt, andesite. Age: Miocene to Holocene, less than 23 million years old. About 0.7 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
A raindrop that lands in La Pine reaches the Pacific Ocean by way of the Little Deschutes, the Deschutes and the Columbia: about 420 river miles.
Lake on the way: Lake Billy Chinook.
200 miles of the trip are on the Columbia.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of La Pine; river miles along the main stem, rounded.
