The Trent 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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71° on Nov. 12, 1981, the hottest reading for this week of the year since 1955. Next is 69° in 1970.
Trent’s center stands about 620 ft above sea level. Within three miles the land runs from 550 ft to 1,330 ft, a difference of 780 ft: hilly country. The highest named summit within 15 miles is Mount June, about 4,580 ft, 12 miles south-southeast.
Under the town center the state geologic map shows Alluvial deposits (sand, gravel, silt), from the Holocene, less than 12,000 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.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 8 mi of the line.
Mafic-volcanic, felsic-volcanic, clastic. Age: Tertiary, 2.6 to 66 million years old. About 8 mi of the line.
Basalt, basaltic-andesite. Age: Oligocene to Miocene, 5.3 to 34 million years old. About 5 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 1 mi of the line.
Basalt, basaltic-andesite. Age: Oligocene to Miocene, 5.3 to 34 million years old. About 1 mi of the line.
Gravel, boulders, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 0.7 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 Trent reaches the Pacific Ocean by way of Rattlesnake Creek, the Middle Fork Willamette, the Willamette and the Columbia: about 300 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 Trent; river miles along the main stem, rounded.
Trent has a warm-summer Mediterranean climate. Summer afternoons average 80° in July; winter nights fall to about 37° in January. About 46 inches of rain fall in a normal year.
On November 14 Trent normally reaches 52° and falls to 42°. The record high is 69°, in 1999; the record low 22°, in 1978. The most rain on this date, 2.26 in, fell in 2014.
Normals 1991–2020 and records since 1955 at Lookout Point Dam, 5 miles east-southeast. NOAA, through RCC-ACIS.
