The Orin 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 sunny; warmer
Partly cloudy
Partly cloudy
Mostly sunny; cooler
Mostly cloudy
Showers likely
Orin’s center stands about 4,700 ft above sea level. Within three miles the land runs from 4,660 ft to 4,980 ft, a difference of 320 ft: rolling country. The highest named summit within 15 miles is Cedar Hill, about 5,180 ft, 4 miles south.
Under the town center the state geologic map shows White River Formation (claystone, conglomerate), from the Late Eocene to Early Oligocene, 31 to 35 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 20×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, claystone, conglomerate. Age: Late Miocene, 5.3 to 12 million years old. About 10 mi of the line.
Claystone, conglomerate. Age: Late Eocene to Early Oligocene, 31 to 35 million years old. About 9 mi of the line.
Shale. Age: Paleocene, 56 to 66 million years old. About 4 mi of the line.
Clay, silt, sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 1 mi of the line.
Sandstone, siltstone, claystone. Age: Late Oligocene to Late Miocene, 5.3 to 28 million years old. About 0.4 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 Orin reaches the Gulf of America by way of the North Platte, the Platte, the Missouri and the Mississippi: about 2,400 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Orin; river miles along the main stem, rounded.
