The Upper Tyrone 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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79° on Nov. 11, 2020, the hottest reading for this week of the year since 1976. Next is 76° in 2005.
Upper Tyrone’s center stands about 1,130 ft above sea level. Within three miles the land runs from 880 ft to 1,250 ft, a difference of 370 ft: rolling country. The highest named summit within 15 miles is Birch Rock Hill, about 2,940 ft, 15 miles east.
Under the town center the state geologic map shows Monongahela Group (limestone, shale, sandstone), from the Carboniferous, 299 to 324 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 12×. 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. Age: Carboniferous, 299 to 324 million years old. About 9 mi of the line.
Shale, clastic. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Limestone, shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Sandstone, shale. Age: Carboniferous to Permian, 252 to 324 million years old. About 2 mi of the line.
Sandstone, conglomerate. Age: Carboniferous, 299 to 324 million years old. About 1 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 Upper Tyrone reaches the Gulf of America by way of Galley Run, the Youghiogheny, the Monongahela, the Ohio and the Mississippi: about 2,000 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 Upper Tyrone; river miles along the main stem, rounded.
Upper Tyrone has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 21° in January. A normal year brings about 24 inches of snow; with the rain, that comes to about 47 inches of water.
Normals 1991–2020 and records since 1976 at Connellsville 2 SSW, 6 miles south, 230 ft lower. NOAA, through RCC-ACIS.
