The Harding Gill Tract 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.
Partly cloudy
Chance of showers; warmer
Chance of showers; cooler
Partly cloudy
Mostly cloudy; warmer
Partly cloudy
Partly cloudy
30° on Nov. 14, 2018, the coldest reading for this week of the year since 1941. Next is 31° in 1970.
Harding Gill Tract’s center stands about 60 ft above sea level. Within three miles the land runs from 50 ft to 80 ft, a difference of 30 ft: nearly flat ground.
Under the town center the state geologic map shows Goliad Formation (clay, sandstone), from the Miocene, 5.3 to 23 million years old.
The section below crosses 4 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.
Clay, sandstone. Age: Miocene, 5.3 to 23 million years old. About 11 mi of the line.
Sand. Age: Holocene, less than 12,000 years old. About 5 mi of the line.
Silt, sand, clay. Age: Pleistocene, less than 2.6 million years old. About 5 mi of the line.
Clay, silt. Age: Pleistocene, less than 2.6 million years old. About 3 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.
Harding Gill Tract has a hot semi-arid climate. Summer afternoons average 98° in August; winter nights fall to about 47° in January. About 20 inches of rain fall in a normal year.
On November 14 Harding Gill Tract normally reaches 77° and falls to 56°. The record high is 95°, in 1951; the record low 30°, in 2018. The most rain on this date, 1.60 in, fell in 2003.
Normals 1991–2020 and records since 1941 at Mccook, 12 miles northwest, 160 ft higher. NOAA, through RCC-ACIS.
