The Garfield 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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Garfield’s center stands about 730 ft above sea level. Within three miles the land runs from 590 ft to 950 ft, a difference of 360 ft: rolling country. The highest named summit within 15 miles is Peaked Mountain, about 2,250 ft, 15 miles west.
Under the town center the state geologic map shows Devonian Seboomook Formation (mudstone, sandstone), from the Early Devonian, 410 to 414 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 19×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Mudstone, sandstone. Age: Early Devonian, 410 to 414 million years old. About 14 mi of the line.
Basalt. Age: Ordovician, 445 to 487 million years old. About 6 mi of the line.
Mudstone, sandstone. Age: Devonian, 359 to 422 million years old. About 3 mi of the line.
Slate. Age: Cambrian to Ordovician, 445 to 542 million years old. About 1 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 Garfield reaches the Bay of Fundy and the Atlantic Ocean by way of the Machias, the Aroostook and the Saint John: about 260 river miles.
190 miles of the trip are on the Saint John.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Garfield; river miles along the main stem, rounded.
