The Green 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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15° on Nov. 15, 1955, the coldest reading for this week of the year since 1899. Next is 19° in 1961.
Green’s center stands about 500 ft above sea level. Within three miles the land runs from 450 ft to 1,710 ft, a difference of 1,260 ft: steep hill country. The highest named summit within 15 miles is Nickel Mountain, about 3,480 ft, 14 miles south-southwest.
Under the town center the state geologic map shows Siletz River Volcanics and related rocks (basalt), from the Paleocene to Middle Eocene, 38 to 66 million years old.
The section below crosses 10 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 9×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Basalt. Age: Paleocene to Middle Eocene, 38 to 66 million years old. About 5 mi of the line.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 5 mi of the line.
Sandstone. Age: Middle Eocene, 38 to 48 million years old. About 4 mi of the line.
Mudstone, sandstone. Age: Late Jurassic to Late Cretaceous, 66 to 164 million years old. About 3 mi of the line.
Siltstone, sandstone. Age: Late Jurassic to Early Cretaceous, 125 to 153 million years old. About 2 mi of the line.
Sandstone. Age: Middle Eocene, 38 to 48 million years old. About 1 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 4 smaller units 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 Green reaches the Pacific Ocean by way of Roberts Creek, the South Umpqua and the Umpqua: about 130 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Green; river miles along the main stem, rounded.
Green has a warm-summer Mediterranean climate. Summer afternoons average 86° in July; winter nights fall to about 37° in January. About 32 inches of rain fall in a normal year.
On November 14 Green normally reaches 54° and falls to 41°. The record high is 68°, in 2001; the record low 17°, in 1955. The most rain on this date, 2.01 in, fell in 1941.
Normals 1991–2020 and records since 1899 at Roseburg Regional Airport, 5 miles north. NOAA, through RCC-ACIS.
