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Topic: Glen Canyon

	Glen Canyon/Lake Powell, Utah and Arizona
		Glen Canyon Dam is on the Colorado River in far north-central Arizona near the Arizona-Utah state line.
		The construction of Glen Canyon Dam occurred only after a major battle between those who wanted to preserve the Colorado River's ecologic and scenic qualities versus those who felt the river's water was being wasted.
		The flooding of hundreds of miles of the Colorado and its tributary canyons in the area eliminated much of this arid region's native riparian habitat.
	www.cpluhna.nau.edu /Places/glencanyon.htm (590 words)

	Glen Canyon - Wikipedia, the free encyclopedia
		Glen Canyon, in southeastern and south central Utah, was carved by two rivers, the Colorado River and the San Juan River.
		Studies indicate a chronology for the Lower Glen Canyon prehistory, “from pre-A.D. 1 to the 15th century and recorded history from 1776 to the present” (Long 61).
		Basketmaker III is not found in the Lower Glen Canyon, but is documented in Navajo Canyon, a large left bank tributary of the Colorado River, within the geographical area of the Lower Glen Canyon (Long 62).
	en.wikipedia.org /wiki/Glen_Canyon (1324 words)

	Grand Canyon - Wikipedia, the free encyclopedia
		The canyon, created by the Colorado River cutting a channel over millions of years, is about 277 miles (446 km) long, ranges in width from 0.25 to 18 miles (0.5 to 29 kilometers) and attains a depth of more than a mile (1,600 m).
		The Colorado River basin (of which the Grand Canyon is a part) has developed in the past 40 million years and the Grand Canyon itself is probably less than five to six million years old (with most of the downcutting occurring in the last two million years).
		Glen Canyon lies to the North and East of Grand Canyon on the Arizona/Utah Border.
	en.wikipedia.org /wiki/Grand_Canyon (1891 words)

	Glen Canyon Dam - Wikipedia, the free encyclopedia
		Glen Canyon Dam is a dam on the Colorado River at Page, Arizona.
		The dam has been controversial since its inception, because it caused the flooding of Glen Canyon to create a man-made reservoir, Lake Powell.
		"Glen Canyon died, and I was partly responsible for its needless death.
	en.wikipedia.org /wiki/Glen_Canyon_Dam (693 words)

	Grand Canyon - MSN Encarta
		A spectacular section of the canyon, together with plateau areas on either side of it, are preserved as the Grand Canyon National Park, which receives about four million visitors a year.
		The topmost layer is a limestone, the Kaibab limestone.
		The first passage of the canyon was accomplished in 1869 by the American geologist John Wesley Powell and ten companions, who made the difficult journey through the length of the gorge in four rowboats.
	encarta.msn.com /encyclopedia_761560790/Grand_Canyon.html (1035 words)

	Glen Canyon
		Glen Canyon, established as a park in 1922, is a sizeable area of preserved ravine which descends from Twin Peaks as part of the Twin Peaks, Mt. Sutro mountain complex.
		Glen Canyon (also Glen Park) is not crowded and has ample trails throughout its prettiest part, which is midsection along its open slopes.
		Glen Canyon is characterized by large areas of grasses and wildflowers on open hillsides facing west, impressive masses of rock formations, and a stream which supports a dense margin of willow trees.
	josephstubbscreations.com /Home2/sf/sfparks/glencanyon/glencanyon.html (947 words)

	Glen Canyon Institute
		Glen Canyon Dam is responsible for drowning the historical spawning grounds for the native fish in the Colorado River, causing the species to be listed on the threatened and endangered list.
		Glen Canyon Dam was built for the primary purpose of water storage and delivery for the Lower Basin.
		Glen Canyon Institute has stated its goal, but we recognize that all the information to answer questions about restoring Glen Canyon is not yet in hand.
	www.glencanyon.org /aboutgci/faq.php (4116 words)

	Glen Canyon/Lake Powell N.R.A. -- Welcome
		The canyons, buttes, and desert sands invite you to discover a place that tells the story of nearly 650 million years of the earth's history.
		Glen Canyon NRA is nestled in the center of the Grand Circle, a collection of seven national parks, seven national monuments, and numerous state parks, historical sites, prehistoric Indian ruins, colorful ghost towns, and stunning geologic formations that reach from northern Arizona into southern Utah.
		Glen Canyon Dam, which backs up the Colorado River through Glen Canyon to form Lake Powell, was built to meet these demands.
	www.americanparknetwork.com /parkinfo/gp (451 words)

	Glen Canyon Dam (Site not responding. Last check: 2007-10-10)
		Glen Canyon Dam is on the mainstem of the Colorado River near the Arizona-Utah state line.
		The general conclusion of the Glen Canyon Environmental Studies Phase 1 was that the dam had blocked much of the sediment coming down the Colorado River and therefore beaches were not being replenished with sand.
		The result was that Glen Canyon operations were changed to reflect a revised flow regime; approximately one-third of the generating capacity was lost due to changed operations.
	www.creda.org /Pages/Glen.html (1139 words)

	Glen Canyon Dam: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-10)
		The grand canyon is a colorful, steep-sided gorge, carved by the colorado river, in northern arizona....
		The kitt peak national observatory (kpno) is located on a 2,096 m (6,880 ft) peak of the quinlan mountains in the arizona-sonoran desert on the...
		The grand canyon national park is one of the oldest united states national parks....
	www.absoluteastronomy.com /encyclopedia/g/gl/glen_canyon_dam.htm (1020 words)

	Lake Powell and Glen Canyon National Recreation Area, Utah
		It began filling in 1963 following the completion of a dam across the Colorado River near the south end of Glen Canyon, and was not completely full until 1980.
		Access to the lake and all of Glen Canyon by road is very limited.
		Also described in the slot canyon section is Llewellyn Gulch, a narrow ravine that joins Lake Powell near the Escalante River.
	www.americansouthwest.net /utah/glen_canyon/lake_powell.html (400 words)

	GLEN CANYON WILDERNESS
		Our Glen Canyon wilderness proposal, in turn, stands for a corollary: that having altered most of the face of this lovely planet, we ought to return some small part of it to its former grace.
		The mesa top is roughly triangular in shape with Moki Canyon on the south as the base, Red Canyon as the northeast side, and the drowned Colorado River gorge as the northwest side.
		Dikes and sills associated with the laccolith are exposed on the flanks of the peaks; light-colored diorite boulders eroded from the intrusive stock lie in the canyon bottoms.
	www.suwa.org /WATE/glencn.html (2365 words)

	GORP - Glen Canyon National Recreation Area, Arizona & Utah
		Impounded behind the Glen Canyon Dam, waters of the Colorado River and tributaries are backed up almost 200 miles to form Lake Powell, the recreational focus of the park.
		Glen Canyon is one of the most controversial engineering projects in history, and the controversy still rages.
		Glen Canyon Dam was completed in 1963, inundating-by all accounts-some of the most beautiful canyon country in the southwest.
	gorp.away.com /gorp/resource/us_nra/az_glen.htm (255 words)

	Bay Area Hiker: Glen Canyon Park
		canyon between residential neighborhoods, Glen Canyon Park is a small open space parcel, but a delight for local dogwalkers and nature enthusiasts.
		The biggest surprise (and most significant reason for keeping this canyon undeveloped) is Islais Creek, an actual stream running through the canyon.
		This is classic "disturbed vegetation," with eucalyptus the dominant plant, and flberry, broom, elderberry, and cotoneaster in the understory.
	www.bahiker.com /sfhikes/glencanyon.html (925 words)

	Glen Canyon Dam at Lake Powell & Page, AZ
		On October 15, 1956, the first blast occurred and the construction of Glen Canyon Dam was officially underway.
		The site met several criteria: the area forming the basin could contain an immense amount of water; the canyon walls and bedrock foundation were strong and stable enough to safely support the high dam; and a large source of good rock and sand was available at nearby Wahweap Creek.
		By 1959, the Glen Canyon Bridge was completed permitting the trucks to deliver equipment and materials for the dam and the new town of
	www.canyon-country.com /lakepowell/gcdam.htm (499 words)

	Glen Canyon Dam on Encyclopedia.com (Site not responding. Last check: 2007-10-10)
		GLEN CANYON DAM [Glen Canyon Dam] 710 ft (216 m) high, 1,560 ft (475 m) long, NE Ariz., on the Colorado River.
		This lake is the nucleus of the Glen Canyon National Recreation Area (see National Parks and Monuments, table).
		Downstream is the Glen Canyon Bridge, 1,271 ft (387 m) long and 700 ft (213 m) high, one of the world's longest and highest steel-arch bridges.
	www.encyclopedia.com /html/G/GlenC1any.asp (511 words)

	The Glen Canyon Reader
		Glen Canyon may be underwater, but its memory refuses to drown.
		Often called "the place no one knew," Glen Canyon was in fact explored by thousands of visitors—including dozens of writers—before the dam's completion.
		Beginning with the first known written report of Glen Canyon in an eighteenth-century missionary journal, Gross has selected accounts of the canyon from both before and after the dam.
	www.uapress.arizona.edu /books/bid1474.htm (358 words)

	Glen Canyon Natural History Association \| Glen Canyon National Recreation Area
		It lay between the treacherous Cataract Canyon and the unknown Grand Canyon, and provided a brief respite for the weary explorers.
		Located along the Arizona-Utah border, Glen Canyon consists of 1.25 million acres of land and water.
		Glen Canyon has miles of red rock canyons that border the crystal waters of Lake Powell and the Colorado River.
	www.glencanyonassociation.org /glen_canyon_NRA/glencanyonNRA.php (183 words)

	Historic 3D Photography of the Powell Survey
		The Glen Canyon Group crops out along the shores of Lake Powell for most of the 150 mile length of the canyon (although the flooding by the reservoir has made the travel distance much shorter).
		Glen Canyon continues downstream of the dam to Lees Ferry where the Colorado River erosion has carved a broad valley in the softer shales of Chinle Formation.
		One of the glens in Glen Canyon, Colorado River.
	3dparks.wr.usgs.gov /3Dcanyons/html/glencanyon.htm (2368 words)

	deseretnews.com \| Glen Canyon Dam begins a grand flush
		Glen Canyon Dam released water to boost sediment along the river in 1996.
		The woman, who did not wish to be identified in the newspaper, said that when peak flow begins, the columns of water should fly across the canyon and hit the other side of the huge dam.
		The project was proposed by the U.S. Bureau of Reclamation, managers of Glen Canyon Dam; the National Park Service, which runs Glen Canyon National Recreation Area, encompassing Lake Powell, as well as Grand Canyon National Park; and the USGS, which operates the Grand Canyon Monitoring and Research Center, based in Flagstaff, Ariz.
	deseretnews.com /dn/view/0,1249,595107172,00.html (664 words)

	Glen Canyon Revealed @ National Geographic Magazine (Site not responding. Last check: 2007-10-10)
		After Glen Canyon Dam closed its gates on the Colorado River near Page, Arizona, in 1963, the river's cargo of snowmelt and spring rain, gathered from much of the mountain West, hit the dam's concrete stopper and began to back up.
		In unknown Glen Canyon's stead emerged the enormously popular Glen Canyon National Recreation Area—which quickly became a mecca for millions of houseboaters, water-skiers, and striped bass fishermen taking advantage of this watery miracle in the desert.
		People who were lucky enough to get a glimpse of Glen Canyon when they were young flocked to see it again, as if offered the chance to visit, after 40 years, a first love who had abruptly moved away.
	www7.nationalgeographic.com /ngm/0604/feature3 (761 words)

	Amazon.com: Glen Canyon: Books: Steven M. Hannon (Site not responding. Last check: 2007-10-10)
		He intertwines three stories: the story of the canyon and the river that carved it; the story of the dam that flooded the canyon and made the river captive; the story of the men and women who strive to save the canyon and set the river free again.
		"Glen Canyon" weaves an intricate story that connects the recent controversy over proposals to drain Lake Powell with the potential availability of weapons of mass destruction because of chaos in the former Soviet Union.
		Glen Canyon by Steven Hannon is an intricately woven novel surrounding the conviction that the free flow of the Colorado River should be restored through exquisite Glen Canyon, which now languishes under Powell Reservoir behind the Glen Canyon Dam.
	www.amazon.com /exec/obidos/tg/detail/-/0965512509?v=glance (1304 words)

	Glen Canyon/Lake Powell -- Geology
		Once the rivers opened the canyons and exposed the cliffs, the wind and water chipped and polished the landscape into intricately sculpted relief.
		The geologic story of Glen Canyon begins with a large, shallow inland sea with levels that rose and fell over a period of 250 million years.
		The oldest exposed rocks in Glen Canyon National Recreation Area date from the Pennsylvanian and Permian periods, 310 and 280 million years ago respectively, and these are visible only in a few places.
	www.americanparknetwork.com /parkinfo/gp/geology.html (471 words)

	Backpacker.com - The Case For Glen Canyon (Site not responding. Last check: 2007-10-10)
		"Glen Canyon died in 1963, and I was partly responsible for its needless death.
		When the floodgates of Glen Canyon Dam closed more than four decades ago, environmentalists believed the nails had been forever pounded into the coffin of one of the largest wilderness areas in the Lower 48.
		And we are happy to report Glen Canyon is alive and well.
	www.backpacker.com /article/1,2646,10025,00.html (355 words)

	ECO - Hiking Glen Canyon
		The tapestried walls and desert varnish are returning as the white calcium carbonate deposition from the lake water flakes, revealing the original surface.
		I hesitantly hiked into these formally drowned canyons expecting the worst; mud, bath tub rings and dead trees, only to find the healing effects of erosion and plant life.
		The canyon continually changes eventually entering one of the nicest narrows in the Escalante Canyons.
	www.ecohike.com /glen_canyon1.htm (607 words)

	EO Newsroom: New Images - Glen Canyon Dam
		The construction of the Glen Canyon Dam on the Colorado River in the late 1950s opened the door to new opportunities in the U.S. Southwest at the same time that it closed the door on others.
		Possibilities for another generation of people to explore and enjoy the history, scenery, geology, and archeology of Glen Canyon and the dozens of side canyons in their natural state disappeared.
		Several of the Grand Canyon’s unique fish species, which depended on those habitats for food and spawning, went extinct; most of those that remain are in various stages of decline.
	earthobservatory.nasa.gov /Newsroom/NewImages/images.php3?img_id=16756 (401 words)

	Lake Powell, Glen Canyon, Lake Powell House Boats, Glen Canyon National Recreation Area, Lake Powell Fishing
		Hundreds of side canyons, inlets and coves sheltering Indian ruins and natural wonders make Lake Powell a paradise for houseboating, photography, and general exploring.
		Glen Canyon offers many hiking opportunities, including treks into the canyons of the Escalante River and the trails into Rainbow Bridge National Monument.
		Entrance fees for Glen Canyon National Recreation Area are $15 per vehicle, $7 for pedestrians, or $30 annually.
	www.utah.com /nationalsites/glen_canyon.htm (591 words)

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