The Many 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.
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Many’s center stands about 280 ft above sea level. Within three miles the land runs from 210 ft to 370 ft, a difference of 160 ft: gently rolling country.
Under the town center the state geologic map shows Wilcox Group (undifferentiated) (sand, clay, lignite), from the Paleocene, 56 to 66 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 61×. 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, clay, lignite. Age: Paleocene, 56 to 66 million years old. About 11 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 6 mi of the line.
Clay, silt, sand. Age: Eocene, 34 to 56 million years old. About 4 mi of the line.
Sand, clay. Age: Eocene, 34 to 56 million years old. About 1 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 1 mi of the line.
Clay, marl. Age: Eocene, 34 to 56 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 Many reaches the Gulf of America by way of San Jose Creek, the Bayou La Nana and the Sabine: about 210 river miles.
Lakes on the way: Toledo Bend Reservoir and Sabine Lake.
140 miles of the trip are on the Sabine.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Many; river miles along the main stem, rounded.
