The Bolton 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.
Mostly cloudy
Partly cloudy; warmer
Partly cloudy
Mostly sunny
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70° on Nov. 15, 1956, the hottest reading for this week of the year since 1893. Next is 69° in 1909.
Bolton’s center stands about 380 ft above sea level. Within three miles the land runs from 310 ft to 1,430 ft, a difference of 1,120 ft: steep hill country. The highest named summit within 15 miles is Crane Mountain, about 3,230 ft, 15 miles west.
The section below crosses 11 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 10×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Charnockite, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 5 mi of the line.
Metasedimentary, migmatite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 4 mi of the line.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 4 mi of the line.
Gneiss, anorthosite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 3 mi of the line.
Unconsolidated. Age: Quaternary, less than 2.6 million years old. About 2 mi of the line.
Paragneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.9 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 5 smaller units 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.
Bolton straddles the St. Lawrence Divide. Rain on the northwest side runs to New York Harbor and the Atlantic Ocean; most of the rest goes to the St. Lawrence River.
From the center of town, a raindrop reaches the St. Lawrence River by way of the La Chute and the Richelieu: about 210 river miles. The St. Lawrence carries it on to the Atlantic. One that lands on the northwest side reaches New York Harbor and the Atlantic Ocean by way of Alder Brook, the Schroon and the Hudson: about 260 river miles.
Lake on the way: Lake Champlain.
85 miles of the trip are on the La Chute.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bolton; river miles along the main stem, rounded.
Bolton has a warm-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 10° in January. About 38 inches of rain fall in a normal year.
On November 14 Bolton normally reaches 47° and falls to 28°. The record high is 67°, in 1973; the record low 5°, in 1905. The most rain on this date, 1.45 in, fell in 2009.
Normals 1991–2020 and records since 1893 from the Glens Falls Area threaded record (Glens Falls/Floyd Bennett Memorial Airport, 14 miles south-southeast). NOAA, through RCC-ACIS.
