The Hartville 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
Mostly sunny; warmer
Partly cloudy
Partly cloudy
Mostly sunny; cooler
Partly cloudy
Showers likely
74° on Nov. 17, 2020, the hottest reading for this week of the year since 1962. Next is 74° in 2025.
Hartville’s center stands about 4,720 ft above sea level. Within three miles the land runs from 4,390 ft to 5,330 ft, a difference of 940 ft: steep hill country. The highest named summit within 15 miles is Sheep Mountain, about 5,580 ft, 14 miles north-northwest.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 16×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, siltstone, claystone. Age: Late Oligocene to Late Miocene, 5.3 to 28 million years old. About 11 mi of the line.
Sandstone. Age: Carboniferous to Permian, 252 to 324 million years old. About 8 mi of the line.
Sand, unconsolidated. Age: Pleistocene to Holocene, less than 2.6 million years old. About 2 mi of the line.
Limestone, dolostone. Age: Late Devonian to Carboniferous, 324 to 384 million years old. About 2 mi of the line.
Amphibolite, hornblende-gneiss, biotite-gneiss. Age: Archean. About 0.6 mi of the line.
Clay, silt, sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 0.5 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 Hartville reaches the Gulf of America by way of the North Platte, the Platte, the Missouri and the Mississippi: about 2,350 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hartville; river miles along the main stem, rounded.
Hartville has a cold semi-arid climate. Summer afternoons average 89° in July; winter nights fall to about 13° in December. About 16 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1962 at Guernsey Dam No 2, 3 miles southwest, 360 ft lower. NOAA, through RCC-ACIS.
