The Estes Park 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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Estes Park’s center stands about 7,550 ft above sea level. Within three miles the land runs from 7,450 ft to 9,330 ft, a difference of 1,880 ft: steep hill country. The highest named summit within 15 miles is Longs Peak, about 14,220 ft, 10 miles south-southwest.
Under the town center the state geologic map shows Biotitic gneiss, schist, and migmatite (biotite-gneiss, schist, migmatite), from the Paleoproterozoic, 1.6 to 2.5 billion years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 3×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Alkali-feldspar-granite, granite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 15 mi of the line.
Biotite-gneiss, schist, migmatite. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 5 mi of the line.
Granite. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 4 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 Estes Park reaches the Gulf of America by way of the South Platte, the Platte, the Missouri and the Mississippi: about 2,400 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Estes Park; river miles along the main stem, rounded.
