Volcanoes are grouped into four types: cinder cones, composite volcanoes, shield volcanoes and lava volcanoes. Cinder cones are circular or oval cones made up of small fragments of lava from a single ...

Northern Arizona’s San Francisco Volcanic Field is a prominent geological landmark in the Southwest. Comprised of about 1,800 square miles, it is the location of more than 600 volcanic vents in the ...

While Southern Arizona is known for its porphyry copper deposits, Northern Arizona is better known for its nonmetallic commodities, including basalt, helium, potash and carbon dioxide (CO2). More than ...

Are you planning a Lassen Volcanic National Park itinerary? It was one of those moments when we realized, with embarrassment, that we’ve lived in California all these years and had never visited ...

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 both ...

The 714,566 hectare site comprises two distinct parts: the dormant volcanic Pinacate Shield of black and red lava flows and desert pavements to the east, and, in the west, the Gran Altar Desert with ...

There’s more to Peru than Machu Picchu, Cusco and the Nazca Lines. Indeed, the Andean city and region of Arequipa reveal a surprising wealth of lesser-known but equally compelling locations. The ...

Marc Santos is a Guides Staff Writer from the Philippines with a BA in Communication Arts and over six years of experience in writing gaming news and guides. He plays just about everything, from ...