The Round Mountain 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.
Chance of showers
Showers likely
Partly cloudy
Showers likely
Showers likely
Chance of showers
Mostly cloudy
Round Mountain’s center stands about 2,110 ft above sea level. Within three miles the land runs from 1,630 ft to 3,690 ft, a difference of 2,060 ft: mountain country. The highest named summit within 15 miles is Snow Mountain, about 6,790 ft, 8 miles east-southeast.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 4×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Andesite, basalt. Age: Late Oligocene to Pleistocene, 2 to 24 million years old. About 14 mi of the line.
Siltstone-mudstone, mudstone. Age: Middle Triassic to Late Triassic, 202 to 247 million years old. About 7 mi of the line.
Mafic-volcanic, felsic-volcanic. Age: Permian to Jurassic, 145 to 260 million years old. About 3 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 0.3 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 Round Mountain reaches San Francisco Bay and the Pacific Ocean by way of Cedar Creek, Little Cow Creek, Cow Creek and the Sacramento: about 310 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Round Mountain; river miles along the main stem, rounded.
