The Morrison Crossroads 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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Morrison Crossroads’s center stands about 1,040 ft above sea level. Within three miles the land runs from 820 ft to 1,190 ft, a difference of 370 ft: rolling country. The highest named summit within 15 miles is Turkey Heaven Mountain, about 1,730 ft, 9 miles north.
Under the town center the state geologic map shows Mad Indian Group (biotite-gneiss, mica-schist), from the Precambrian to Paleozoic.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 27×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Mica-schist, phyllite. Age: Precambrian to Paleozoic. About 7 mi of the line.
Biotite-gneiss, mica-schist. Age: Precambrian to Paleozoic. About 6 mi of the line.
Amphibolite. Age: Precambrian to Paleozoic. About 3 mi of the line.
Mica-schist. Age: Precambrian to Paleozoic. About 2 mi of the line.
Schist. Age: Precambrian to Paleozoic. About 2 mi of the line.
Trondhjemite. Age: Precambrian to Paleozoic. 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. 3 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 Morrison Crossroads reaches Mobile Bay and the Gulf of America by way of Mud Creek, the Little Tallapoosa, the Tallapoosa, the Alabama and the Mobile: about 520 river miles.
310 miles of the trip are on the Alabama.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Morrison Crossroads; river miles along the main stem, rounded.
