The Ellsworth 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
Mostly cloudy
Partly cloudy
Mostly sunny
Mostly sunny
Mostly sunny
Partly cloudy
Ellsworth’s center stands about 110 ft above sea level. Within three miles the land runs from 30 ft to 290 ft, a difference of 260 ft: rolling country. The highest named summit within 15 miles is Bald Mountain, about 1,260 ft, 12 miles northwest.
Under the town center the state geologic map shows Ordovician - Precambrian Z Ellsworth formation (siltstone, phyllite), from the Neoproterozoic to Ordovician, 445 to 1,000 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 21×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone, phyllite. Age: Neoproterozoic to Ordovician, 445 to 1,000 million years old. About 12 mi of the line.
Granite. Age: Devonian, 359 to 422 million years old. About 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.
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 Ellsworth reaches the Atlantic Ocean by way of Gilpatrick Brook and the Union: about 8 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Ellsworth; river miles along the main stem, rounded.
