こんなことを言うと疑いたくなるかもしれないが、オールド・フェイスフルだけが間欠泉ではない。我々が住んでいる地球には、イエローストーン国立公園と比肩しうる（ライバルにもなりうる）驚くべき水の名所がいくつもある。そうだとしても、「フライ・ガイザー」の名前は聞いたことがないに違いない。
よーく見て。これがネバダ州ブロックロック砂漠にあるフライ・ガイザーだ。
フライ・ガイザーは人工のものじゃないか、という人もいるかもしれない。というのも、60年代に掘削作業を繰り返したら、鉱物が地球の表面から隆起し、積み重なり、現在見られるような山々が形成されたからだ。
でも、これって手つかずの自然と言えないか？ 小さなラクダのコブにも見えないかい？ 個々に行ってみたいと思わないかい？
あなたが聞いたことのないもう一つの間欠泉は、アイスランドにあるストロックル間欠泉だ。4〜6分間に1回噴出し、時には130フィート（40メートル）近くの高さまで吹き上がる。アイスランドのフヴィータ―川付近にあるジオサーマルパーク（地熱公園）内にあるストックル間欠泉は訪問可能だ。
だいたいの間欠泉は、2.5フィート（80センチ）くらいしか吹き上がらないが、広大に広がる蒸気の平原に、きっと目を見張ることだろう。
関連記事
Top 10 most colorful natural wonders
Zhangye Danxia Landform Geological Park, Gansu Province, China(01 of10)
Cheapflights.com\'s exploration into the world of colorful natural wonders starts with Zhangye Danxia Landform Geological Park.This unusual rock formation located in Gansu Province, China, boasts an array of reds, oranges and greens due to the evolution of red sandstone and mineral deposits from more than 24 million years ago. This incredible sight is visited by thousands of tourists each year. Visitors can walk along a boardwalk through the mountainous rock formations. (credit:Flickr:gudi&cris)
Upper Antelope Canyon, Page, Arizona, United States(02 of10)
Antelope Canyon is located on Navajo land near Page, Arizona. The Navajo refer to Upper Antelope Canyon as Tsé bighánílín, meaning “the place where water runs through rocks.” From mid-March until early October, beams of sunlight enter the canyon, giving it the orange-red glow tourists from all over come to admire. Due to its accessibility, Antelope is the most visited slot canyon in the American Southwest and a year-round attraction. (credit:Flickr:canorus)
Five Flower Lake, Jiuzhaigou Valley, China(03 of10)
Five Flower Lake, or Wuhua Hai, situated in Jiuzhaigou Valley, China, is colored by mineral deposits and aquatic plant life. Its shallow depth allows visitors to see the shades of turquoise in the water as well as various fallen trees and branches that lie on the lake’s floor. According to ancient legend, Five Flower Lake, along with the 108 other multicolored lakes in the reserve, were created when a goddess dropped and smashed a mirror her lover had given her into 108 pieces, in turn creating these magnificent lakes. (credit:Flickr:alex hanoko)
Tulip Fields, Netherlands(04 of10)
Natural tulip fields located between Sassenheim and Lisse in the Netherlands are an incredible sight to behold both from above and from ground level. Rows of colored flowers — reds, purples, yellows and more — create a rainbow effect. Many tourists flock to Sassenheim in the spring for the area’s annual flower parade. Others rent bicycles to tour the dozens of tulip farms in this area of the countryside. (credit:Flickr:Martin Godfrey)
Lac Rose, Senegal(05 of10)
Lake Retba of Senegal, known locally as Lac Rose, catches the eye of visitors with its natural, vivid pink hue. The color is attributed to the lake’s high salt content ,which attracts the Dunaliella salina bacteria producing a red pigment that absorbs sunlight. If you’re thinking of planning a visit, go during the country’s dry season (November through June) to see the lake at its most vibrant. Locals use the lake for salt production, and on a visit you will likely see salt collectors gathering salt from the bottom of the lake and placing their findings into baskets. (credit:Flickr:lander2006)
Morning Glory Pool, Wyoming, United States(06 of10)
Located in the Upper Geyser Basin of Yellowstone National Park in Wyoming, the funnel-shaped Morning Glory Pool is a hot spring named for its close resemblance to the morning glory flower. The hot spring itself reaches a temperature of 171 degrees Fahrenheit (77 degrees Celsius). The unique colors of orange and yellow are caused by thermophilic bacteria, which thrive in hot temperatures. This popular attraction can be reached by road — it’s less than two miles away from the Old Faithful Visitors Center.
Garden of the Gods, Colorado Springs, Colorado, United States(07 of10)
Located in Colorado Springs, Colorado, this red rock formation was originally named Red Rock Corral, but, when two surveyors visited the spot, they decided it was a site fit for the gods and renamed it Garden of the Gods. This National Natural Landmark is in a free public park that’s open daily, and tourists and locals use it for hiking, rock climbing and to take advantage of the incredible scenery. (credit:Flickr:paparutzi)
Pink Sands Beach, Bahamas(08 of10)
You’ll find plenty of white-sand beaches when you visit the islands of the Caribbean and the Bahamas, but pink sand is much harder to come by. That is unless you visit Pink Sands Beach on Harbour Island in the Bahamas, which runs three miles along the island’s east coast. “Frommer’s” has named it one of the best beaches in the world and tourists claim it’s ideal for swimming thanks to the year-round warm water and nearby coral reef that calms waves coming in from the open Atlantic Ocean. (credit:Flickr:dany13)
Caño Cristales, Meta, Colombia(09 of10)
This South American attraction located in Meta, Colombia, is also known as “The River of Five Colors” or “The Liquid Rainbow,” and it’s easy to see why. Visitors come to Serrania de la Macarena National Park to gaze at the natural beauty of the flowing water, which features hues of pinks, reds, yellows and greens as a result of the blue water mixed with yellow and green sand. The pink comes from a plant species on the river floor called Macarenia clavigera, which turns bright red under the water’s surface. Guided tours can be arranged to this unique and remote attraction. (credit:Flickr:megavas)
Lake Hillier, Australia(10 of10)
Lake Hillier is located on Middle Island, the largest of the islands that make up the Recherche Archipelago off the west coast of Australia. The lake, which is safe for swimming, has a distinct rose-pink color that takes on a bubble-gum-pink look when viewed from the air. The hue is thought to be caused by organisms called Dunaliella salina and Halobacteria, present in other similar bodies of water with high salt content. (credit:Flickr:robertpaulyoung)
イエローストーン国立公園画像集
Grizzly Bear in Yellowstone National Park(01 of70)
(credit:Flickr:diana_robinson)
Yellowstone River on a foggy morning(02 of70)
(credit:Flickr:*S A N D E E P*)
Yellowstone National Park(03 of70)
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Yellowstone National Park(04 of70)
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Moose in Yellowstone(05 of70)
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Yellowstone National Park(06 of70)
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Dragon's Mouth Spring(07 of70)
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Yellowstone National Park(08 of70)
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Yellowstone National Park(09 of70)
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Old Faithful, Yellowstone National Park (7627547680)(10 of70)
com/photos/skinnylawyer/7627547680/ Old Faithful, Yellowstone National Park. Uploaded by russavia | Date 2012-07-21 07:13 | Author http:// ... (credit:WikiMedia:)
Yellowstone National Park(11 of70)
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Yellowstone National Park(12 of70)
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Yellowstone National Park(13 of70)
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Yellowstone National Park(14 of70)
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Mud Volcano, Yellowstone National Park (7712518928)(15 of70)
com/photos/skinnylawyer/7712518928/ Mud Volcano, Yellowstone National Park. Uploaded by russavia | Date 2012-07-20 17:20 | Author http://www ... (credit:WikiMedia:)
Yellowstone National Park(16 of70)
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Grand Canyon of the Yellowstone(17 of70)
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Grand Canyon of the Yellowstone(18 of70)
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Yellowstone National Park(19 of70)
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Yellowstone National Park(20 of70)
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Yellowstone National Park(21 of70)
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Yellowstone National Park(22 of70)
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Grand Canyon of the Yellowstone(23 of70)
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Yellowstone National Park(24 of70)
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Stage Coach in Yellowstone National Park(25 of70)
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Yellowstone National Park(26 of70)
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Yellowstone National Park(27 of70)
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Yellowstone National Park(28 of70)
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Yellowstone National Park YELL4577(29 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4575(30 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4574(31 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4573(32 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4549(33 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4515(34 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4506(35 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4465(36 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4435(37 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL3996(38 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL3994(39 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL3412(40 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL3102(41 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL3090(42 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL3990(43 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
Yellowstone National Park YELL4548(44 of70)
description Established in 1872, Yellowstone National Park is America\'s first national park. Located in Wyoming, Montana, and Idaho, it is ... (credit:WikiMedia:)
View of the 'Morning Glory' hot spring w(45 of70)
View of the \'Morning Glory\' hot spring with it\'s unique colors caused by brown, orange and yellow algae-like bacteria called Thermophiles, that thrive in the cooling water turning the vivid aqua-blues to a murkier greenish brown, in the Yellowstone National Park, Wyoming on June 1, 2011. Yellowstone National Park, was established by the U.S. Congress and signed into law by President Grant on March 1, 1872. The park is located primarily in the U.S. state of Wyoming, though it also extends into Montana and Idaho and was the first national park in the world. It is known for its wildlife and its many geothermal features, especially the Old Faithful Geyser. AFP PHOTO/Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images) (credit:Getty Images)
Geyser, Yellowstone National Park (5682679932)(46 of70)
Yellowstone National Park sits on top of a geothermal hotspot that is thought to have been a massive supervolcano a million years ago. ... (credit:WikiMedia:)
Coyote in Yellowstone national park(47 of70)
Description Coyote,Canis latrans in Yellowstone National Park | Source | Author https://sites. google. com/site/thebrockeninglory/ Brocken ... (credit:WikiMedia:)
Yellowstone National Park Blue Pool(48 of70)
description 1 This is one of the many hot pools found in the Yellowstone National Park | date 2009-09-26 | source | author Urgh1962 | ... (credit:WikiMedia:)
Elks in yellowstone national park(49 of70)
Description Elk s, Cervus canadensis in Yellowstone National Park | Source | Date 2008 | Author https://sites. google. com/site/ ... (credit:WikiMedia:)
Elk in Yellowstone National Park(50 of70)
Description Elk, Cervus canadensis in Yellowstone National Park | Source | Date 2008 | Author https://sites. google. com/site/ ... in Yellowstone ... (credit:WikiMedia:)
Tourist walk beside the partially frozen(51 of70)
Tourist walk beside the partially frozen Yellowstone Lake at the West Thumb Geyser Basin in the Yellowstone National Park, Wyoming on June 2, 2011. Yellowstone National Park, was established by the U.S. Congress and signed into law by President Grant on March 1, 1872. The park is located primarily in the U.S. state of Wyoming, though it also extends into Montana and Idaho and was the first national park in the world. It is known for its wildlife and its many geothermal features, especially the Old Faithful Geyser. AFP PHOTO/Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images) (credit:Getty Images)
Daisy Geyser erupting in Yellowstone National Park(52 of70)
Description Daisy Geyser erupting in Yellowstone National Park | Source | Author https://sites. google. com/site/thebrockeninglory/ Brocken ... (credit:WikiMedia:)
Boiling lake in Yellowstone National Park(53 of70)
Description Boiling lake in Yellowstone National Park .Once Churning Caldron was a cool spring covered with colorful mats of microorganisms ... (credit:WikiMedia:)
Pronghorn in Yellowstone National Park 1(54 of70)
Description 1 Pronghorn, Antilocapra americana in Yellowstone National Park | Source | Author https://sites. google. com/site/ ... in Yellowstone ... (credit:WikiMedia:)
"Firehole River, Yellowstone National Park," Wyoming - NARA - 520005(55 of70)
Title\"Firehole River, Yellowstone National Park,\" Wyoming | Scope and content | General notes | ARC 520005 | Local identifier 79-AA-T15 | ... (credit:WikiMedia:)
View of the 'Morning Glory' hot spring(56 of70)
View of the \'Morning Glory\' hot spring with it\'s unique colors caused by brown, orange and yellow algae-like bacteria that thrive in the cooling water, turning the vivid aqua-blue to a murkier greenish brown, in the Yellowstone National Park, Wyoming on June 2, 2011. Yellowstone National Park, was established by the U.S. Congress and signed into law by President Grant on March 1, 1872. The park is located primarily in the U.S. state of Wyoming, though it also extends into Montana and Idaho and was the first national park in the world. It is known for its wildlife and its many geothermal features, especially the Old Faithful Geyser. AFP PHOTO/Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images) (credit:Getty Images)
Mud Volcano, Yellowstone National Park (7712519974)(57 of70)
com/photos/skinnylawyer/7712519974/ Mud Volcano, Yellowstone National Park. Uploaded by russavia | Date 2012-07-20 17:27 | Author http://www ... (credit:WikiMedia:)
Mud Volcano, Yellowstone National Park (7712518928)(58 of70)
com/photos/skinnylawyer/7712518928/ Mud Volcano, Yellowstone National Park. Uploaded by russavia | Date 2012-07-20 17:20 | Author http://www ... (credit:WikiMedia:)
A bison in Yellowstone National Park.JPG(59 of70)
description 1 A bison in Hayden Valley in Yellowstone National Park | date 2012-08-23 | source | author Beatlesnature | permission | other_ ... (credit:WikiMedia:)
Coyote in Yellowstone national park 1(60 of70)
Description Coyote,Canis latrans in Yellowstone National Park | Source | Author https://sites. google. com/site/thebrockeninglory/ Brocken ... (credit:WikiMedia:)
Solar Glory in Yellowstone National Park(61 of70)
org/wiki/Glory_%28optical_phenomenon%29 Solar glory at the steam from hot spring s at Yellowstone National Park .A glory is an optical ... (credit:WikiMedia:)
Yellowstone National Park Firehole spring 01(62 of70)
Description Firehole spring, Lower Geyser Basin, Yellowstone National Park, Wyoming | Source | Date 2007-07-31 | Author User:MatthiasKabel ... (credit:WikiMedia:)
Yellowstone National Park Firehole spring 00(63 of70)
Description Firehole spring, Lower Geyser Basin, Yellowstone National Park, Wyoming | Source | Date 2007-07-31 | Author User:MatthiasKabel ... (credit:WikiMedia:)
Basalt columns in yellowstone national park(64 of70)
Description Basalt columns in Yellowstone National Park | Source | Author https://sites. google. com/site/thebrockeninglory/ Brocken Inaglory ... (credit:WikiMedia:)
Yellowstone National Park Firehole spring 02(65 of70)
Description Firehole spring, Lower Geyser Basin, Yellowstone National Park, Wyoming | Source | Date 2007-07-31 | Author User:MatthiasKabel ... (credit:WikiMedia:)
Tourists watch the 'Old Faithful' geyser(66 of70)
Tourists watch the \'Old Faithful\' geyser which erupts on average every 90 minutes in the Yellowstone National Park, Wyoming on June 1, 2011. Yellowstone National Park, was established by the U.S. Congress and signed into law by President Grant on March 1, 1872. The park is located primarily in the U.S. state of Wyoming, though it also extends into Montana and Idaho and was the first national park in the world. It is known for its wildlife and its many geothermal features, especially the Old Faithful Geyser. AFP PHOTO/Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images) (credit:Getty Images)
A golden-mantled ground squirrel begs for food in the Yellowst(67 of70)
A golden-mantled ground squirrel begs for food in the Yellowstone National Park, Wyoming on June 1, 2011. Yellowstone National Park, was established by the U.S. Congress and signed into law by President Grant on March 1, 1872. The park is located primarily in the U.S. state of Wyoming, though it also extends into Montana and Idaho and was the first national park in the world. It is known for its wildlife and its many geothermal features, especially the Old Faithful Geyser. AFP PHOTO/Mark RALSTON (Photo credit should read MARK RALSTON/AFP/Getty Images) (credit:Getty Images)
Buffalo grazing in Yellowstone National Park(68 of70)
description 1 buffalo grazing in Yellowstone National Park | date 2007-07-10 00:56:36 | source | author Lumpytrout | permission | other_ ... (credit:WikiMedia:)
Grand Prismatic Spring, Yellowstone National Park USA(69 of70)
Yellowstone#Midway Geyser Basin | Midway Geyser Basin , en: Yellowstone National Park | Yellowstone National Park , en: United States | USA . ... (credit:WikiMedia:)
Orange Spring Mound in Yellowstone National Park 1(70 of70)
Description Dead trees at Orange Spring Mound at Mammoth Hot Springs, Yellowstone National Park. Bacteria and algae create the streaks of ... (credit:WikiMedia:)