The Cave Junction 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.
Showers likely
Showers likely
Showers likely
Showers likely
Showers likely
Partly cloudy
Partly cloudy
Cave Junction’s center stands about 1,340 ft above sea level. Within three miles the land runs from 1,240 ft to 3,160 ft, a difference of 1,920 ft: steep hill country. The highest named summit within 15 miles is Althouse Mountain, about 6,260 ft, 15 miles southeast.
Under the town center the state geologic map shows Terrace, pediment, and lag gravels (gravel, boulders, clay), from the Pleistocene to Holocene, less than 2.6 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 5×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 6 mi of the line.
Serpentinite. Age: Jurassic, 145 to 202 million years old. About 5 mi of the line.
Peridotite, serpentinite. Age: Paleozoic to Jurassic, 145 to 542 million years old. About 4 mi of the line.
Gravel, boulders, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 3 mi of the line.
Andesite. Age: Late Jurassic, 145 to 164 million years old. About 3 mi of the line.
Mudstone, graywacke. Age: Late Jurassic, 153 to 164 million years old. About 2 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 Cave Junction reaches the Pacific Ocean by way of the East Fork Illinois, the Illinois and the Rogue: about 85 river miles.
55 miles of the trip are on the Illinois.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Cave Junction; river miles along the main stem, rounded.
