The Camp Sherman 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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67° on Nov. 12, 1991, the hottest reading for this week of the year since 1948. Next is 63° in 1999.
Camp Sherman’s center stands about 2,980 ft above sea level. Within three miles the land runs from 2,910 ft to 4,770 ft, a difference of 1,860 ft: steep hill country. The highest named summit within 15 miles is Three Fingered Jack, about 7,710 ft, 10 miles west.
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 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 6×. 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 7 mi of the line.
Basalt. Age: Miocene to Pliocene, 2.6 to 23 million years old. About 6 mi of the line.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 4 mi of the line.
Gravel, sand, boulders. Age: Pleistocene, less than 2.6 million years old. About 3 mi of the line.
Basaltic-andesite, basalt. Age: Quaternary, less than 2.6 million years old. About 2 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. 1 smaller unit along the line are not listed.
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 Camp Sherman reaches the Pacific Ocean by way of South Fork Lake Creek, the Metolius, the Deschutes and the Columbia: about 350 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 Camp Sherman; river miles along the main stem, rounded.
Camp Sherman has a warm-summer Mediterranean climate. Summer afternoons average 82° in July; winter nights fall to about 27° in January. A normal year brings about 85 inches of snow; with the rain, that comes to about 74 inches of water.
On November 14 Camp Sherman normally reaches 46° and falls to 31°. The record high is 59°, in 2021; the record low 12°, in 1978. The most rain on this date, 2.44 in, fell in 2014.
Normals 1991–2020 and records since 1948 at Marion Forks Fish Hatchery, 18 miles northwest, 500 ft lower. NOAA, through RCC-ACIS.
