The Oregon Shores 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.
Oregon Shores’s center stands about 4,290 ft above sea level. Within three miles the land runs from 4,140 ft to 4,790 ft, a difference of 650 ft: hilly country. The highest named summit within 15 miles is Pelican Butte, about 8,000 ft, 12 miles west.
Under the town center the state geologic map shows Sedimentary rocks (sandstone-mudstone), from the Pliocene to Pleistocene, less than 5.3 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.
Sandstone, siltstone, mudstone. Age: Miocene to Pliocene, 2.6 to 23 million years old. About 6 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 5 mi of the line.
Basalt. Age: Miocene to Pliocene, 2.6 to 23 million years old. About 4 mi of the line.
Sandstone-mudstone. Age: Pliocene to Pleistocene, less than 5.3 million years old. About 3 mi of the line.
Basaltic-andesite, basalt, andesite. Age: Miocene, 5.3 to 23 million years old. About 3 mi of the line.
Gravel, sand, boulders. Age: Pleistocene, less than 2.6 million years old. About 0.8 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 Oregon Shores reaches the Pacific Ocean by way of the Link and the Klamath: about 280 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Oregon Shores; river miles along the main stem, rounded.