The New Baltimore 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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New Baltimore’s center stands about 1,440 ft above sea level. Within three miles the land runs from 1,310 ft to 2,780 ft, a difference of 1,470 ft: steep hill country. The highest named summit within 15 miles is Cover Hill, about 2,810 ft, 13 miles west.
Under the town center the state geologic map shows Foreknobs Formation (sandstone), from the Late Devonian, 359 to 384 million years old.
The section below crosses 11 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.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Sandstone, siltstone, shale. Age: Late Devonian, 359 to 384 million years old. About 4 mi of the line.
Sandstone. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.
Siltstone. Age: Late Devonian, 359 to 384 million years old. About 3 mi of the line.
Quartzite. Age: Silurian, 422 to 445 million years old. About 3 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 5 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 Baltimore reaches Chesapeake Bay and the Atlantic Ocean by way of the Raystown Branch Juniata, the Juniata and the Susquehanna: about 290 river miles.
Lakes on the way: Lake Aldred and Raystown Lake.
90 miles of the trip are on the Juniata.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of New Baltimore; river miles along the main stem, rounded.
