The Roseboom 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, 1948, the hottest reading for this week of the year since 1893. Next is 73° in 1956.
Roseboom’s center stands about 1,940 ft above sea level. Within three miles the land runs from 1,290 ft to 2,240 ft, a difference of 950 ft: steep hill country. The highest named summit within 15 miles is Pine Mountain, about 2,370 ft, 6 miles southeast.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 12×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, shale. Age: Middle Devonian, 384 to 388 million years old. About 8 mi of the line.
Black-shale. Age: Middle Devonian, 388 to 394 million years old. About 5 mi of the line.
Black-shale. Age: Middle Ordovician, 459 to 471 million years old. About 4 mi of the line.
Shale, siltstone, sandstone. Age: Middle Devonian, 384 to 394 million years old. About 3 mi of the line.
Shale, siltstone, sandstone. Age: Middle Devonian, 384 to 394 million years old. About 1 mi of the line.
Limestone, dolostone. Age: Early Devonian, 394 to 422 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. 3 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 Roseboom reaches Chesapeake Bay and the Atlantic Ocean by way of Pleasant Brook, Cherry Valley Creek and the Susquehanna: about 470 river miles.
Lake on the way: Lake Aldred.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Roseboom; river miles along the main stem, rounded.
Roseboom has a warm-summer humid continental climate. Summer afternoons average 73° in July; winter nights fall to about 14° in January. A normal year brings about 86 inches of snow; with the rain, that comes to about 48 inches of water.
On November 14 Roseboom normally reaches 40° and falls to 30°. The record high is 70°, in 1989; the record low 9°, in 1939. The most rain on this date, 0.95 in, fell in 1949.
Normals 1991–2020 and records since 1893 at Cooperstown, 11 miles west, 680 ft lower. NOAA, through RCC-ACIS.
