The Moore 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.
Moore’s center stands about 660 ft above sea level. Within three miles the land runs from 590 ft to 790 ft, a difference of 200 ft: rolling country. The highest named summit within 15 miles is California Hill, about 920 ft, 14 miles north-northeast.
Under the town center the state geologic map shows Queen City Sand (siltstone, sandstone), from the Middle Eocene, 38 to 48 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone, sandstone. Age: Middle Eocene, 38 to 48 million years old. About 11 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 5 mi of the line.
Mudstone. Age: Late Paleocene to Early Eocene, 48 to 59 million years old. About 5 mi of the line.
Gravel. Age: Late Pliocene to Pleistocene, less than 3.6 million years old. About 2 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 1 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 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. 1 smaller unit 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 Moore reaches Corpus Christi Bay and the Gulf of America by way of Black Creek, San Miguel Creek, the Frio and the Nueces: about 190 river miles.
Lakes on the way: Horseshoe Tank and Lake Corpus Christi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Moore; river miles along the main stem, rounded.