The Mathews 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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Mathews’s center stands about 14 ft above sea level. Within three miles the land runs from 0 ft to 80 ft, a difference of 80 ft: gently rolling country. Open water lies within three miles.
Under the town center the state geologic map shows Tabb Formation: Lynnhaven and Poquoson Members (sand, silt), from the Quaternary, less than 2.6 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand, silt. Age: Quaternary, less than 2.6 million years old. About 9 mi of the line.
Fine-detrital, coarse-detrital. Age: Tertiary to Quaternary, less than 66 million years old. About 3 mi of the line.
Sand. Age: Quaternary, less than 2.6 million years old. About 2 mi of the line.
Sand. Age: Tertiary, 2.6 to 66 million years old. About 1 mi of the line.
Clay, silt. Age: Holocene, less than 12,000 years old. About 0.8 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 Mathews reaches Chesapeake Bay and the Atlantic Ocean by way of Put in Creek and the East River: about 5 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Mathews; river miles along the main stem, rounded.
