The Indian Rocks 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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0° on Nov. 17, 1933, the coldest reading for this week of the year since 1901. Next is 2° in 1908.
Indian Rocks’s center stands about 1,330 ft above sea level. Within three miles the land runs from 1,180 ft to 1,670 ft, a difference of 490 ft: hilly country. The highest named summit within 15 miles is Salem Hill, about 2,260 ft, 14 miles north-northwest.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 16×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Conglomerate-sandstone, sandstone. Age: Late Devonian, 359 to 384 million years old. About 12 mi of the line.
Sandstone, siltstone, mudstone. Age: Late Devonian, 359 to 384 million years old. About 11 mi of the line.
Sandstone, siltstone. Age: Late Devonian, 359 to 384 million years old. About 0.9 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 Indian Rocks reaches Delaware Bay and the Atlantic Ocean by way of Wallenpaupack Creek, the Lackawaxen and the Delaware: about 280 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Indian Rocks; river miles along the main stem, rounded.
Indian Rocks has a warm-summer humid continental climate. Summer afternoons average 78° in July; winter nights fall to about 15° in January. About 50 inches of rain fall in a normal year.
On November 14 Indian Rocks normally reaches 46° and falls to 30°. The record high is 65°, in 1955; the record low 5°, in 1905. The most rain on this date, 1.85 in, fell in 1949.
Normals 1991–2020 and records since 1901 from the Mount Pocono Area threaded record (Pocono Mountains Municipal Airport, 16 miles south, 560 ft higher). NOAA, through RCC-ACIS.
