The Keystone Heights 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.
Sunny
Mostly sunny; warmer
Partly cloudy
Partly cloudy
Mostly sunny
Mostly sunny
Partly cloudy
89° on Nov. 17, 1957, the hottest reading for this week of the year since 1890. Next is 89° in 2023.
Keystone Heights’s center stands about 150 ft above sea level. Within three miles the land runs from 80 ft to 200 ft, a difference of 120 ft: gently rolling country.
Under the town center the state geologic map shows Cypresshead Formation (sand), from the Late Pliocene, 2.6 to 3.6 million years old.
The section below crosses 2 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.
Sand. Age: Late Pliocene, 2.6 to 3.6 million years old. About 16 mi of the line.
Sand. Age: Pleistocene, less than 2.6 million years old. About 8 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 Keystone Heights reaches the St. Johns River and the Atlantic Ocean by way of Etonia Creek and Rice Creek: about 110 river miles.
80 miles of the trip are on Rice Creek.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Keystone Heights; river miles along the main stem, rounded.
Keystone Heights has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 43° in January. About 48 inches of rain fall in a normal year.
On November 14 Keystone Heights normally reaches 75° and falls to 51°. The record high is 86°, in 1955; the record low 31°, in 1963. The most rain on this date, 1.78 in, fell in 1949.
Normals 1991–2020 and records since 1890 from the Gainesville Area threaded record (Gainesville Regional Airport, 16 miles west-southwest). NOAA, through RCC-ACIS.
