The Eagle Rock 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 cloudy; warmer
Mostly sunny; warmer
Partly cloudy
Partly cloudy
Mostly sunny
Mostly sunny
3.72 inches of rain fell in two days, the most for this week of the year since records began in 1960. The next wettest, 1.99 inches, fell in 2022.
Eagle Rock’s center stands about 970 ft above sea level. Within three miles the land runs from 920 ft to 2,350 ft, a difference of 1,430 ft: steep hill country. The highest named summit within 15 miles is Rich Patch Mountains, about 3,700 ft, 9 miles west-northwest.
Under the town center the state geologic map shows Juniata, Oswego, Martinsburg (Reedsville and Dolly Ridge), and Eggleston Formations (shale, sandstone), from the Ordovician, 445 to 487 million years old.
The section below crosses 15 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 7×. 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. Age: Devonian, 359 to 422 million years old. About 5 mi of the line.
Shale, sandstone. Age: Ordovician, 445 to 487 million years old. About 4 mi of the line.
Arenite, shale, sandstone. Age: Silurian, 422 to 445 million years old. About 3 mi of the line.
Dolostone, limestone. Age: Cambrian, 487 to 542 million years old. About 3 mi of the line.
Dolostone, limestone. Age: Cambrian to Ordovician, 445 to 542 million years old. About 2 mi of the line.
Limestone. Age: Silurian to Devonian, 359 to 445 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. 9 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 Eagle Rock reaches Chesapeake Bay and the Atlantic Ocean by way of the James: about 320 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Eagle Rock; river miles along the main stem, rounded.
Eagle Rock has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 23° in January. A normal year brings about 10 inches of snow; with the rain, that comes to about 40 inches of water.
On November 14 Eagle Rock normally reaches 56° and falls to 31°. The record high is 84°, in 1993; the record low 13°, in 1996. The most rain on this date, 1.26 in, fell in 1972.
Normals 1991–2020 and records since 1960 at Covington Filter Plant, 16 miles northwest, 270 ft higher. NOAA, through RCC-ACIS.
