The Trevorton 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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74° on Nov. 11, 2020, the hottest reading for this week of the year since 1926. Next is 72° in 1973.
Trevorton’s center stands about 820 ft above sea level. Within three miles the land runs from 600 ft to 1,500 ft, a difference of 900 ft: steep hill country. The highest named summit within 15 miles is Big Mountain, about 1,830 ft, 15 miles east.
The section below crosses 11 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 16×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Black-shale. Age: Early Devonian to Middle Devonian, 384 to 422 million years old. About 5 mi of the line.
Shale, siltstone, sandstone. Age: Carboniferous, 324 to 359 million years old. About 4 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Sandstone, siltstone. Age: Late Devonian, 359 to 384 million years old. About 2 mi of the line.
Siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 2 mi of the line.
Siltstone. Age: Late Devonian, 359 to 384 million years old. About 2 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 5 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 Trevorton reaches Chesapeake Bay and the Atlantic Ocean by way of Zerbe Run, Mahanoy Creek and the Susquehanna: about 130 river miles.
Lake on the way: Lake Aldred.
75 miles of the trip are on the Susquehanna.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Trevorton; river miles along the main stem, rounded.
Trevorton has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 19° in January. A normal year brings about 29 inches of snow; with the rain, that comes to about 44 inches of water.
On November 14 Trevorton normally reaches 51° and falls to 32°. The record high is 70°, in 1964; the record low 18°, in 2019. The most rain on this date, 0.97 in, fell in 1972.
Normals 1991–2020 and records since 1926 at Sunbury, 8 miles northwest, 240 ft lower. NOAA, through RCC-ACIS.
