The Tionesta 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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77° on Nov. 11, 2020, the hottest reading for this week of the year since 1921. Next is 72° in 2012.
Tionesta’s center stands about 1,500 ft above sea level. Within three miles the land runs from 1,030 ft to 1,720 ft, a difference of 690 ft: hilly country. The highest named summit within 15 miles is Fools Knob, about 1,810 ft, 11 miles northeast.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 25×. 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, conglomerate. Age: Carboniferous, 299 to 324 million years old. About 8 mi of the line.
Sandstone, siltstone. Age: Carboniferous, 324 to 359 million years old. About 7 mi of the line.
Sandstone, shale. Age: Late Devonian, 359 to 384 million years old. About 6 mi of the line.
Siltstone, shale. Age: Carboniferous, 324 to 359 million years old. About 2 mi of the line.
Sandstone. Age: Carboniferous, 324 to 359 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.
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 Tionesta reaches the Gulf of America by way of the Allegheny, the Ohio and the Mississippi: about 2,100 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 Tionesta; river miles along the main stem, rounded.
Tionesta has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 19° in January. A normal year brings about 51 inches of snow; with the rain, that comes to about 47 inches of water.
On November 14 Tionesta normally reaches 51° and falls to 33°. The record high is 71°, in 1989; the record low 12°, in 1986. The most rain on this date, 0.86 in, fell in 1997.
Normals 1991–2020 and records since 1921 at Tionesta 2 SE Lake, here, 300 ft lower. NOAA, through RCC-ACIS.
