The Mountain Dale 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.
Mostly cloudy
Mostly sunny; warmer
Partly cloudy
Sunny
Sunny
Mostly sunny
Mostly sunny
74° on Nov. 11, 2020, the hottest reading for this week of the year since 1898. Next is 70° in 1956.
Mountain Dale’s center stands about 1,040 ft above sea level. Within three miles the land runs from 930 ft to 1,590 ft, a difference of 660 ft: hilly country. The highest named summit within 15 miles is Denman Mountain, about 3,060 ft, 15 miles north.
Under the town center the state geologic map shows Oneonta Formation (shale), from the Middle Devonian to Late Devonian, 359 to 394 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 10×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale, sandstone, conglomerate. Age: Late Devonian, 359 to 384 million years old. About 6 mi of the line.
Sandstone, conglomerate, shale. Age: Late Devonian, 359 to 384 million years old. About 6 mi of the line.
Shale. Age: Middle Devonian to Late Devonian, 359 to 394 million years old. About 6 mi of the line.
Shale, sandstone, conglomerate. Age: Silurian, 422 to 428 million years old. About 3 mi of the line.
Graywacke, shale. Age: Middle Ordovician, 459 to 471 million years old. About 2 mi of the line.
Shale, siltstone, sandstone. Age: Middle Devonian, 384 to 394 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.
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 Mountain Dale reaches New York Harbor and the Atlantic Ocean by way of Braden Brook, Rondout Creek 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 Mountain Dale; river miles along the main stem, rounded.
Mountain Dale has a warm-summer humid continental climate. Summer afternoons average 79° in July; winter nights fall to about 13° in January. A normal year brings about 70 inches of snow; with the rain, that comes to about 53 inches of water.
On November 14 Mountain Dale normally reaches 47° and falls to 29°. The record high is 66°, in 1964; the record low 6°, in 1986. The most rain on this date, 1.60 in, fell in 1911.
Normals 1991–2020 and records since 1898 at Liberty 1 NE, 13 miles northwest, 540 ft higher. NOAA, through RCC-ACIS.
