The La Barge 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
Partly cloudy
Partly cloudy
Showers likely
Partly cloudy; cooler
Showers likely
Showers likely
La Barge’s center stands about 6,600 ft above sea level. Within three miles the land runs from 6,550 ft to 7,350 ft, a difference of 800 ft: hilly country. The highest named summit within 15 miles is Lake Mountain, about 9,460 ft, 14 miles west-northwest.
Under the town center the state geologic map shows Alluvium and Colluvium (clay, silt, sand), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 10 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.
Oil-shale, marlstone. Age: Eocene, 34 to 56 million years old. About 8 mi of the line.
Clay, silt, sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 4 mi of the line.
Oil-shale, marlstone, mudstone. Age: Eocene, 34 to 56 million years old. About 3 mi of the line.
Mudstone, conglomerate, sandstone. Age: Paleocene to Eocene, 34 to 66 million years old. About 3 mi of the line.
Mudstone, sandstone. Age: Eocene, 34 to 56 million years old. About 3 mi of the line.
Gravel. Age: Pleistocene to Holocene, less than 2.6 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. 4 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 La Barge reaches the Gulf of California by way of the Green River and the Colorado: about 1,570 river miles.
Lakes on the way: Lake Mead, Lake Powell, Flaming Gorge Reservoir and Lake Mohave.
410 miles of the trip are on the Green River.
Seldom reaches the sea. Dams and canals now take nearly all of the Colorado before its old delta in Mexico.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of La Barge; river miles along the main stem, rounded.
