The Homeacre-Lyndora 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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78° on Nov. 12, 2010, the hottest reading for this week of the year since 1949. Next is 75° in 2009.
Homeacre-Lyndora’s center stands about 1,240 ft above sea level. Within three miles the land runs from 990 ft to 1,360 ft, a difference of 370 ft: rolling country.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 31×. 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 19 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 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.
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 Homeacre-Lyndora reaches the Gulf of America by way of Sullivan Run, Connoquenessing Creek, the Beaver, the Ohio and the Mississippi: about 1,980 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Homeacre-Lyndora; river miles along the main stem, rounded.
Homeacre-Lyndora has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 17° in January. About 45 inches of rain fall in a normal year.
On November 14 Homeacre-Lyndora normally reaches 50° and falls to 31°. The record high is 75°, in 2009; the record low 8°, in 1986. The most rain on this date, 1.15 in, fell in 1972.
Normals 1991–2020 and records since 1949 at Slippery Rock 1 SSW, 15 miles north-northwest. NOAA, through RCC-ACIS.
