Topography
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The ocean’s ebbs and flows reveal dynamic tidal flats and a well-traveled shipping route along the coast of Germany.
The coastal dune field in Brazil looks like a desert but fills with freshwater lagoons every year.
Snow-capped mountains carved by deep river valleys preside over northwestern Washington state.
Differences in the underlying bedrock and how rivers distribute sediment make the coastlines west of Portland look unlike those northeast…
The hills and basins of Seattle, Washington, have been sculpted by glaciers and modified by humans.
The expansive mudflats, sandy beaches, and mangrove forests of the Bijagós archipelago support an array of migratory shorebirds and large…
Sediment eroded from ice-capped mountains splays out across a broad river valley on Russia’s Severny Island.
Apollo astronauts previewed their roles as lunar field geologists in Alaska’s Valley of Ten Thousand Smokes.
The Nebraska Sandhills—the largest system of sand dunes in the Western Hemisphere—stretch across about one-quarter of the state.
