The Mountain Park 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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Mountain Park’s center stands about 1,370 ft above sea level. Within three miles the land runs from 1,330 ft to 1,540 ft, a difference of 210 ft: rolling country. The highest named summit within 15 miles is Mount Pinchot, about 2,430 ft, 12 miles northeast.
Under the town center the state geologic map shows Terrace Deposits (coarse-detrital, fine-detrital), from the Pleistocene, 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 22×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 7 mi of the line.
Shale. Age: Permian, 252 to 299 million years old. About 7 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 4 mi of the line.
Gabbro, anorthosite, diorite. Age: Early Cambrian, 521 to 542 million years old. About 2 mi of the line.
Granite. Age: Middle Cambrian, 497 to 521 million years old. About 2 mi of the line.
Conglomerate. Age: Permian, 252 to 299 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 Mountain Park reaches the Gulf of America by way of East Otter Creek, Otter Creek, the North Fork Red, the Red River, the Atchafalaya and the Lower Atchafalaya: about 1,150 river miles.
960 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Mountain Park; river miles along the main stem, rounded.
