The Edgewood 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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80° on Nov. 11, 2020, the hottest reading for this week of the year since 1943. Next is 72° in 2021.
Edgewood’s center stands about 940 ft above sea level. Within three miles the land runs from 710 ft to 1,270 ft, a difference of 560 ft: hilly country. The highest named summit within 15 miles is Pollocks Knob, about 1,340 ft, 13 miles south-southwest.
Under the town center the state geologic map shows Casselman Formation (shale, clastic), from the Carboniferous, 299 to 324 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 29×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone, shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 11 mi of the line.
Shale, clastic. Age: Carboniferous, 299 to 324 million years old. About 8 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Sandstone, shale. Age: Carboniferous to Permian, 252 to 324 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 Edgewood reaches the Gulf of America by way of Ninemile Run, the Monongahela, the Ohio and the Mississippi: about 1,950 river miles.
970 miles of the trip are on the Ohio.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Edgewood; river miles along the main stem, rounded.
Edgewood has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 22° in January. About 41 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1943 at Braddock Lock 2, 3 miles south-southeast, 210 ft lower. NOAA, through RCC-ACIS.
