... of the Little Colorado River, near Leupp, Arizona.
Roadcut on highway U.S. 95 just south of Spokane River Bridge at Coeur d'Alene, ID
Pillow lavas exposed by quarrying operations.
Some basalt showing a well-developed weathering rind and columnar jointing.
A typical view along the seacliff stretch of the Roonivoolin Trail on the southern part of Rathlin Island.
Chalk topped by basalt!
Chalk, chert, and basalt dominate the lithologies of these well-rounded beach cobbles.
Columnar basalt at a seaside location in County Antrim.
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