The Unity 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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71° on Nov. 11, 2020, the hottest reading for this week of the year since 1895. Next is 71° in 2022.
Unity’s center stands about 220 ft above sea level. Within three miles the land runs from 170 ft to 570 ft, a difference of 400 ft: rolling country. The highest named summit within 15 miles is Mount Harris, about 1,260 ft, 10 miles east-northeast.
Under the town center the state geologic map shows Silurian - Ordovician Vassalboro Formation (sandstone), from the Late Ordovician to Silurian, 428 to 459 million years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 18×. 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. Age: Late Ordovician to Silurian, 428 to 459 million years old. About 24 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 Unity reaches the Atlantic Ocean by way of Bacon Brook, the Sandy Stream, the Twentyfive Mile Stream, the Sebasticook and the Kennebec: about 95 river miles.
60 miles of the trip are on the Kennebec.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Unity; river miles along the main stem, rounded.
Unity has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 9° in January. About 43 inches of rain fall in a normal year.
On November 14 Unity normally reaches 47° and falls to 29°. The record high is 66°, in 1930; the record low 7°, in 1905. The most rain on this date, 1.01 in, fell in 1904.
Normals 1991–2020 and records since 1895 at Waterville Treatment Plt, 17 miles west-southwest, 160 ft lower. NOAA, through RCC-ACIS.
