The Cragsmoor 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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72° on Nov. 11, 2020, the hottest reading for this week of the year since 1896. Next is 70° in 1909.
Cragsmoor’s center stands about 1,880 ft above sea level. Within three miles the land runs from 330 ft to 2,260 ft, a difference of 1,930 ft: steep hill country. The highest named summit within 15 miles is East Mountain, about 2,330 ft, 13 miles north-northwest.
Under the town center the state geologic map shows Austin Glen Formation (graywacke, shale), from the Middle Ordovician, 459 to 471 million 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 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.
Graywacke, shale. Age: Middle Ordovician, 459 to 471 million years old. About 6 mi of the line.
Shale. Age: Middle Ordovician, 459 to 471 million years old. About 6 mi of the line.
Shale. Age: Middle Devonian to Late Devonian, 359 to 394 million years old. About 4 mi of the line.
Sandstone, conglomerate, shale. Age: Late Devonian, 359 to 384 million years old. About 4 mi of the line.
Shale, siltstone, sandstone. Age: Middle Devonian, 384 to 394 million years old. About 2 mi of the line.
Shale, sandstone, conglomerate. Age: Silurian, 422 to 428 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. 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 Cragsmoor reaches New York Harbor and the Atlantic Ocean by way of Platte Kill, Shawangunk Kill and the Hudson: about 140 river miles.
90 miles of the trip are on the Hudson.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Cragsmoor; river miles along the main stem, rounded.
Cragsmoor has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 19° in January. A normal year brings about 59 inches of snow; with the rain, that comes to about 53 inches of water.
On November 14 Cragsmoor normally reaches 49° and falls to 35°. The record high is 67°, in 1909; the record low 12°, in 1905. The most rain on this date, 1.95 in, fell in 1972.
Normals 1991–2020 and records since 1896 at Mohonk Lake, 14 miles east-northeast, 780 ft lower. NOAA, through RCC-ACIS.
