The Troutdale 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.
Partly cloudy
Mostly cloudy
Mostly sunny; warmer
Partly cloudy
Sunny
Mostly sunny
Mostly sunny
4.20 inches of rain fell in two days, the most for this week of the year since records began in 1896. The next wettest, 3.27 inches, fell in 1926.
Troutdale’s center stands about 3,220 ft above sea level. Within three miles the land runs from 2,690 ft to 4,840 ft, a difference of 2,150 ft: mountain country. The highest named summit within 15 miles is Mount Rogers, about 5,720 ft, 6 miles west-southwest.
Under the town center the state geologic map shows Konnarock Formation (cataclasite, arkose), from the Neoproterozoic, 542 to 1,000 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 7×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Cataclasite, arkose. Age: Neoproterozoic, 542 to 1,000 million years old. About 9 mi of the line.
Rhyolite. Age: Neoproterozoic, 542 to 1,000 million years old. About 6 mi of the line.
Sandstone. Age: Cambrian, 487 to 542 million years old. About 4 mi of the line.
Rhyolite. Age: Neoproterozoic, 542 to 1,000 million years old. About 2 mi of the line.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 1 mi of the line.
Felsic-volcanic. Age: Neoproterozoic, 542 to 1,000 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. 1 smaller unit 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 Troutdale reaches the Gulf of America by way of Fox Creek, the New River, the Kanawha, the Ohio and the Mississippi: about 2,040 river miles.
Lake on the way: Claytor Lake.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Troutdale; river miles along the main stem, rounded.
Troutdale has a oceanic climate. Summer afternoons average 81° in July; winter nights fall to about 22° in January. A normal year brings about 14 inches of snow; with the rain, that comes to about 51 inches of water.
On November 14 Troutdale normally reaches 56° and falls to 28°. The record high is 76°, in 1994; the record low 6°, in 1986. The most rain on this date, 1.13 in, fell in 1972.
Normals 1991–2020 and records since 1896 at Jefferson 2 E, 19 miles south, 460 ft lower. NOAA, through RCC-ACIS.
