The Edgewood 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.
7.38 inches of rain fell in two days, the most for this week of the year since records began in 1948. The next wettest, 4.10 inches, fell in 1950.
Edgewood’s center stands about 2,960 ft above sea level. Within three miles the land runs from 2,790 ft to 3,680 ft, a difference of 890 ft: hilly country. The highest named summit within 15 miles is Mount Shasta, about 14,110 ft, 12 miles east-southeast.
Under the town center the state geologic map shows Quaternary alluvium and marine deposits (coarse-detrital), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 2×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Coarse-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 9 mi of the line.
Dacite, andesite. Age: Pleistocene to Holocene, less than 2.6 million years old. About 8 mi of the line.
Andesite, basalt. Age: Late Oligocene to Pleistocene, 2 to 24 million years old. About 3 mi of the line.
Schist, gneiss. Age: Paleoproterozoic to Cretaceous, 66 to 2,500 million years old. About 2 mi of the line.
Phyllite. Age: Ordovician to Early Devonian, 394 to 487 million years old. About 1 mi of the line.
Andesite, basalt. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 0.8 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 Edgewood reaches the Pacific Ocean by way of the Shasta and the Klamath: about 220 river miles.
180 miles of the trip are on the Klamath.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Edgewood; river miles along the main stem, rounded.
Edgewood has a warm-summer Mediterranean climate. Summer afternoons average 85° in July; winter nights fall to about 28° in December. About 38 inches of rain fall in a normal year.
On November 14 Edgewood normally reaches 51° and falls to 32°. The record high is 73°, in 1995; the record low 11°, in 1978. The most rain on this date, 1.91 in, fell in 1965.
Normals 1991–2020 and records since 1948 from the Mount Shasta Area threaded record (Mount Shasta, 12 miles south-southeast, 590 ft higher). NOAA, through RCC-ACIS.