The Leakey 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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92° on Nov. 16, 2025, the hottest reading for this week of the year since 1955. Next is 90° in 2024.
Leakey’s center stands about 1,610 ft above sea level. Within three miles the land runs from 1,540 ft to 2,230 ft, a difference of 690 ft: hilly country. The highest named summit within 15 miles is Housetop Mountain, about 2,330 ft, 13 miles west.
Under the town center the state geologic map shows Glen Rose Limestone (limestone, marlstone), from the Early Cretaceous, 100 to 145 million years old.
The section below crosses 3 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.
Limestone. Age: Early Cretaceous, 100 to 145 million years old. About 14 mi of the line.
Limestone, marlstone. Age: Early Cretaceous, 100 to 145 million years old. About 9 mi of the line.
Coarse-detrital, fine-detrital. Age: Quaternary, less than 2.6 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.
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 Leakey reaches Corpus Christi Bay and the Gulf of America by way of the Frio and the Nueces: about 330 river miles.
Lakes on the way: Horseshoe Tank and Lake Corpus Christi.
200 miles of the trip are on the Frio.
Often dry. About 30% of the way is mapped as streams that run only after rain or snowmelt; the water makes the whole trip in floods.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Leakey; river miles along the main stem, rounded.
Leakey has a humid subtropical climate. Summer afternoons average 93° in August; winter nights fall to about 31° in January. About 29 inches of rain fall in a normal year.
On November 14 Leakey normally reaches 69° and falls to 41°. The record high is 84°, in 2007; the record low 17°, in 2018. The most rain on this date, 0.55 in, fell in 1998.
Normals 1991–2020 and records since 1955 at Prade Ranch, 13 miles north, 440 ft higher. NOAA, through RCC-ACIS.
