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Een groeve heeft hier een oude vulkaan aangesneden. Er is een prachtige waaier van bazaltzuilen te zien
Saturday, September 9, 1989.
Today was our second major day in Yellowstone. This time we took the upper loop. We headed to Canyon Village and spent some time exploring the Grand Canyon of Yellowstone. The Yellowstone River plunges 1,000 feet below your observation point. This is where the yellow stone is very apparent and where the origin of the name comes from. The various colouring is al-so quite spectacular. Brilliant reds and vibrant oranges contribute to the beauty of the canyon walls. Lookout Point gave us a great view of the Lower Falls which are twice the height of Niagara. Artist's Point on the north rim was also spectacular. Continuing our trek we stopped at various points overlooking the Rivera Mountains and some interesting basalt column formations caused by lava flow. We also saw a petrified tree. At Mammoth Hot Springs the terraces are spectacular travertine (calcium carbonate) formations which produce delicately crusted pools and runoffs. Dictated by different water temperatures, algae thrives here giving the terraces their colour. The Park's headquarters are here and there is quite a little settlement. At one time the U.S. cavalry was based here before the National Park Service was set up. That night we had an interesting evening. We decided to eat at one of West Yellowstone's fine hotels. After waiting two hours we were offered our meals free because of the kitchen's foul up! We did not get quite what we ordered but it was excellent so who's complaining?
Best Western Desert Inn, West Yellowstone, MT
The basalt columns of the Basilica Terrace, which demarcated the 5th/6th century Byzantine church that stood at this corner of the ancient city of Gadara, in Umm Qais, northern Jordan. Gadara was one of the prominent cities of the Decapolis, a group of ten Greco-Roman cities in the eastern Mediterranean, which flourished from the 3rd century BCE through the Roman and Byzantine periods. The church itself was destroyed by an earthquake in the 8th century.
On Iceland's South Coast lies a stretch of coast with black beaches. At first glance some of these pictures look like they are in black and white. The beaches in Iceland don't tend to be used for sunbathing, but in some ways they are much too beautiful for that anyway.
Photos from a trip to the Giant's Causeway, County Antrim, Northern Ireland - July 2014 - scree slopes
The Giant's Causeway is an area of about 40,000 interlocking basalt columns, the result of an ancient volcanic fissure eruption
On Route 138 in Oregon, northwest of Crater Lake, Toketee Falls carves out a bowl in the unusual basalt columns
Photos from a trip to the Giant's Causeway, County Antrim, Northern Ireland - scale model of the Causeway - July 2014
Country Antrim, Northern Ireland
The Giant's Causeway is an area of about 40,000 interlocking basalt columns, the result of an ancient volcanic eruption. This is a good view of them before being completely unearthed by erosion.
On either side of Aldeyjarfoss waterfall (a 20 m high waterfall in Bárðardalur District of northern Iceland at the northern part of the Sprengisandur highland road), are rows of symmetrical hexagonal basalt columns. Basalt columns are formed by a process called columnar jointing when still magma cools down. When it cools down, it contracts and separates into columnar joints, often hexagonal. The separation begins where the cooling is greatest and continues as the rest cools little by little.