The New Tripoli 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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19° on Nov. 11, 2017, the coldest reading for this week of the year since 1934. Next is 19° in 2019.
New Tripoli’s center stands about 570 ft above sea level. Within three miles the land runs from 490 ft to 970 ft, a difference of 480 ft: hilly country. The highest named summit within 15 miles is Bear Mountain, about 1,670 ft, 14 miles north-northeast.
Under the town center the state geologic map shows Martinsburg Formation (shale, slate), from the Ordovician, 445 to 487 million years old.
The section below crosses 8 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.
Shale, slate. Age: Ordovician, 445 to 487 million years old. About 17 mi of the line.
Shale. Age: Silurian, 422 to 445 million years old. About 2 mi of the line.
Sandstone, conglomerate. Age: Silurian, 422 to 445 million years old. About 2 mi of the line.
Dolostone. Age: Ordovician, 445 to 487 million years old. About 1 mi of the line.
Dolostone. Age: Silurian, 422 to 445 million years old. About 0.8 mi of the line.
Black-shale. Age: Early Devonian to Middle Devonian, 384 to 422 million years old. About 0.5 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 2 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 New Tripoli reaches Delaware Bay and the Atlantic Ocean by way of School Creek, Ontelaunee Creek, Maiden Creek, the Schuylkill and the Delaware: about 170 river miles.
85 miles of the trip are on the Schuylkill.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of New Tripoli; river miles along the main stem, rounded.
New Tripoli has a hot-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 19° in January. A normal year brings about 27 inches of snow; with the rain, that comes to about 52 inches of water.
Normals 1991–2020 and records since 1934 at Lehighton 1 SSW, 10 miles north-northeast, 120 ft lower. NOAA, through RCC-ACIS.
