The Eustis 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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68° on Nov. 11, 2020, the hottest reading for this week of the year since 1969. Next is 67° in 2002.
Eustis’s center stands about 1,180 ft above sea level. Within three miles the land runs from 1,140 ft to 1,860 ft, a difference of 720 ft: hilly country. The highest named summit within 15 miles is Crocker Mountain, about 4,210 ft, 13 miles south-southeast.
Under the town center the state geologic map shows Ordovician - Cambrian Dead River Formation, upper member (quartzite, phyllite), from the Cambrian to Ordovician, 445 to 542 million years old.
The section below crosses 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 8×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Melange. Age: Cambrian, 487 to 542 million years old. About 7 mi of the line.
Mudstone, sandstone. Age: Silurian, 428 to 445 million years old. About 4 mi of the line.
Mudstone, sandstone. Age: Early Devonian, 410 to 414 million years old. About 4 mi of the line.
Quartzite. Age: Cambrian to Ordovician, 445 to 542 million years old. About 3 mi of the line.
Sandstone, shale. Age: Silurian, 422 to 445 million years old. About 3 mi of the line.
Gabbro, diorite, ultramafic. Age: Devonian, 359 to 422 million years old. About 2 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 2 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.
A raindrop that lands in Eustis reaches the Atlantic Ocean by way of Flagstaff Lake, the Dead and the Kennebec: about 190 river miles.
Lake on the way: Flagstaff Lake.
140 miles of the trip are on the Kennebec.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Eustis; river miles along the main stem, rounded.
Eustis has a warm-summer humid continental climate. Summer afternoons average 76° in July; winter nights fall to about 0° in January. A normal year brings about 123 inches of snow; with the rain, that comes to about 43 inches of water.
On November 14 Eustis normally reaches 41° and falls to 24°. The record high is 60°, in 2010; the record low 4°, in 2019. The most rain on this date, 0.65 in, fell in 2018.
Normals 1991–2020 and records since 1969 at Rangeley, 19 miles south-southwest, 350 ft higher. NOAA, through RCC-ACIS.
