The Mount Angel 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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70° on Nov. 13, 1999, the hottest reading for this week of the year since 1892. Next is 68° in 1930.
Mount Angel’s center stands about 180 ft above sea level. Within three miles the land runs from 130 ft to 350 ft, a difference of 220 ft: rolling country. The highest named summit within 15 miles is High Hill, about 1,870 ft, 12 miles east-southeast.
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 15×. 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 13 mi of the line.
Basalt. Age: Miocene, 5.3 to 23 million years old. About 7 mi of the line.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 3 mi of the line.
Coarse-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 1 mi of the line.
Gravel, boulders, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 0.5 mi of the line.
Sandstone. Age: Oligocene to Early Miocene, 16 to 34 million years old. About 0.5 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 Mount Angel reaches the Pacific Ocean by way of the Pudding, the Willamette and the Columbia: about 170 river miles.
Lake on the way: Willamette Falls Hydroelectric Power Reservoir.
100 miles of the trip are on the Columbia.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Mount Angel; river miles along the main stem, rounded.
Mount Angel has a warm-summer Mediterranean climate. Summer afternoons average 84° in July; winter nights fall to about 35° in December. About 40 inches of rain fall in a normal year.
On November 14 Mount Angel normally reaches 54° and falls to 39°. The record high is 68°, in 2001; the record low 12°, in 1955. The most rain on this date, 3.00 in, fell in 1896.
Normals 1991–2020 and records since 1892 from the Salem Area threaded record (Salem Airport (Mcnary Field), 15 miles southwest). NOAA, through RCC-ACIS.
