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Externally, the Roden Crater looks like a dormant cinder cone. Inside, the cone has been transformed into a series of engineered spaces, tunnels and apertures which capture sunlight during the day and ...

Ash released from shield volcanoes often builds up around the vent forming a steep, round hill known as a cinder cone. A lava tube may also form, beneath the surface of the ground, when low ...

Mount Tabor is a dormant volcanic cinder cone located 5 miles east of downtown Portland. It may sound like a trek, but the scenery is well worth it. At its summit, Mount Tabor provides vistas of ...