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	Amargosa River - Wikipedia, the free encyclopedia
		Evidence of human habitation along the river goes back approximately 10,000 years to the end of the last ice age, when the area was much wetter.
		In addition to prehistoric Lake Manly in Death Valley, the middle river valley was submerged during the late Pleistocene by prehistoric Lake Tecopah.
		The section of the river where it flows perennially is in the Amargosa Canyon along the southeast end of the Amargosa Range near the town of Shoshone, California.
	en.wikipedia.org /wiki/Amargosa_River (476 words)

	Amargosa Valley, Nevada - Wikipedia, the free encyclopedia
		The town is named for the Amargosa River which flows through the valley from its origination in Nevada to its terminus in Death Valley, California.
		The name "Amargosa Valley" is used locally, although the official name of the broad valley in which the town resides is officially labled on USGS topographic maps as the "Amargosa Desert".
		The populated area of the Amargosa Desert is sandwiched between U.S. 95 to the north, and the California border to the south.
	en.wikipedia.org /wiki/Amargosa_Valley (1120 words)

	Amargosa River
		In this region of California, the river sustains biologically rich wetlands and riparian forests, and flows through a rugged canyon defined by precipitously eroded cliffs.
		The rare Amargosa vole is found in wetlands adjacent to the river and nowhere else in the world.
		In recognition of the river's oustanding scenic, recreational, historical, cultural, ecological, geological, and paleotological values, the BLM has determined that a 26 mile stretch of the Amargosa from Shoshone to State Highway 126 is eligible for National Wild and Scenic River protection.
	www.friendsoftheriver.org /CaliforniaRivers/Rivers/Amargosa.html (887 words)

	EPA: Federal Register: Endangered and Threatened Wildlife and Plants 12-Month Find
		The Amargosa toad is unique to riparian habitats associated with the Amargosa River, tributary springs of the Amargosa River in Oasis Valley and isolated spring systems near Beatty, Nye County, Nevada.
		Amargosa toad, though restricted to the Oasis Valley and vicinity, was considered well distributed and abundant in 1983 (Maciolek 1983b).
		BLM has restricted off-road vehicle use in or near Amargosa toad habitat, constructed enclosure fences to eliminate damage to riparian habitats from feral burro and livestock use, proposed all occupied habitats as Areas of Critical Environmental Concern, and initiated a cadastral survey of the Amargosa River in Oasis Valley to establish property boundaries.
	www.epa.gov /docs/fedrgstr/EPA-SPECIES/1996/March/Day-01/pr-10093.html (1431 words)

	Colorado River Aqueduct: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-12)
		Parker dam is a concrete gravity-arch dam which spans the colorado river, at a point 155 miles downstream of hoover dam....
		The carson river is a river in northern california and northwestern nevada in the united states, EHandler: no quick summary.
		The owens river is a river in eastern california in the united states, EHandler: no quick summary.
	www.absoluteastronomy.com /encyclopedia/c/co/colorado_river_aqueduct.htm (1163 words)

	CBD - Letterhead (Site not responding. Last check: 2007-10-12)
		The Amargosa River Population qualifies as a Distinct Population Segment because it is discrete, significant, and threatened or endangered.
		The Amargosa River DPS meets three criteria for consideration as a threatened or endangered species under the Endangered Species Act: the present or threatened destruction, modification, or curtailment of its habitat or range; the inadequacy of existing regulatory mechanisms; and other natural or manmade factors affecting its continued existence.
		Other significant threats to the Amargosa River DPS are toxins in the environment from nearby military operations, residual pesticides, and blocking of sand sources, all of which have likely contributed to local extirpation of lizard populations (Morafka 2000 and 2002).
	www.biologicaldiversity.org /swcbd/PRESS/MFTL4-10-06.html (830 words)

	Death Valley - MSN Encarta
		On the east are the peaks of the Amargosa Range.
		Several watercourses enter the valley, among them the Amargosa River from the south and Furnace Creek from the east, but it is only after heavy rains, which are rare, that they contain water.
		The lowest parts of the valley floor are salt flats, devoid of vegetation; higher portions contain a mixture of sand and salt grains, occasionally forming dunes.
	ca.encarta.msn.com /encyclopedia_761573752/Death_Valley.html (669 words)

	Southwest Ground-water Resources Project: Surface-water/ground-water interactions:Amargosa Desert
		Eighty kilometers of the Amargosa River, of which the lower 60 kilometers are dry in normal years, were instrumented with streambed temperature sensors in early January 1998 in advance of El Niño-induced precipitation.
		Temperature data, substantiated by field observations of peak flows, demonstrated that the Amargosa River flowed its entire length in February 1998 from its head waters in Oasis Valley to it terminus in Death Valley, California.
		The purpose of the purposed work is to establish base-line data on surface-water flow and ground-water recharge in the Upper Amargosa Basin under typical, dry weather patterns and to use this data to asses the response of recharge to variations in weather patterns.
	az.water.usgs.gov /swgwrp/Pages/Amargosa_desc.html (642 words)

	Barstow Field Office - Amargosa River Natural Area (Site not responding. Last check: 2007-10-12)
		The Amargosa River Natural Area is located at the south end of Tecopa Valley, and occupies the heart of the Tecopa Basin, east of the southeastern corner of Death Valley National Park.
		The narrow Amargosa Canyon is known for its dense greenery and the shallow Amargosa River, complete with "hanging gardens" and a small waterfall.
		The Amargosa River Trail was established on the historic TandT railroad grade, through Amargosa Canyon.
	www.blm.gov /ca/barstow/amargosa.html (2141 words)

	Pahrump Valley Times - Nye County's Largest Newspaper Circulation
		Not only will Amargosa Valley try something completely new this year with its first annual Amargosa Days, but the town will also host the first annual Amargosa River Race Saturday afternoon.
		According to Jan Cameron, member of the Amargosa Valley Town Advisory Board, the Amargosa River is underground, so technically the race won't be conducted on the river.
		Instead, the race will be held at one of the main hubs in town, Cameron said, which is near the community center and park the rest of the festivities will be held at.
	www.pahrumpvalleytimes.com /2005/04/22/news/amargosarace.html (342 words)

	Pahrump Valley Times - Nye County's Largest Newspaper Circulation
		The falls of the Amargosa River are "bush-league," but still worth a picture.
		If the Amargosa becomes federally classified as a wild and scenic river, it would be the only California riparian area found within a desert environment.
		We pass a spot on the river where flash floods from a slot canyon last summer washed out a heavy-timbered footbridge over the Amargosa, heaving and tossing it upside down into the willows like a toy.
	www.pahrumpvalleytimes.com /2005/01/14/news/wild.html (1182 words)

	Stories: Beatty Habitat Committee
		The project is meant to enhance tourism in Beatty and protect the Amargosa toad, which was the subject of a petition seeking endangered-species status.
		The 125-mile-long ephemeral river often dries up on the surface, but for long stretches it dives underground, surfacing as springs, seeps, and wetlands that support wildlife and dozens of species of native and migrating birds.
		The Amargosa toad is found only in Oasis Valley along a 12-mile stretch of the Amargosa River extending through Beatty.
	www.redlodgeclearinghouse.org /stories/beattyhabitat.html (1040 words)

	[No title]
		The earliest description (01) of the habitat of Amargosa voles was, "Wet ground under tall tules (Scirpus olneyi), where the runways extend through mud and water...".
		It is not known to what extent the Amargosa vole originally was distributed in the vicinity of the type locality, but it is likely that it's present distribution is less than what it had been historically.
		Several types of human activities, including the removal of marsh vegetation (by fire to open these areas for pasture development), grazing, groundwater pumping, diversion of springs and the Amargosa River itself, road repair work, road construction, and the introduction of exotic animals are all known to have occurred, or presently are occurring.
	fwie.fw.vt.edu /WWW/esis/lists/e051010.htm (3623 words)

	Amargosa Canyon - Palisades Trestle
		Walking down the roadbed from the Palisades, we begin a sweeping curve to permit the railroad to cross the Amargosa River and run along the high western slopes of the Sperry Hills.
		It was from the side of this structure that the original and Ghost images of the T&T running along under the Palisades were taken.
		Descending from the remaining portion of the filled in trestle, you have to jump the 'mighty' Amargosa River.
	www.ttrr.org /ac_walk/aw_p09.html (499 words)

	HYDROCHEMICAL FACIES IN GROUND WATER NEAR YUCCA MOUNTAIN, NEVADA (Site not responding. Last check: 2007-10-12)
		Ground water from the Amargosa River facies is characterized by large total dissolved solids and large sulfate and chloride concentrations relative to bicarbonate.
		Water from the Eastern Amargosa Valley facies is similar to that of the Amargosa River facies but has substantially larger chloride concentrations.
		Sr values in the Amargosa River and Eastern Amargosa Valley facies appear to be homogenized in the saline waters at Franklin Lake Playa.
	gsa.confex.com /gsa/2002AM/finalprogram/abstract_42586.htm (467 words)

	Combined Web Site Geographical Index - A
		River that begins at Pahute Mesa in Nye County, Nevada and flows south through Beatty and the Amargosa Desert to Shoshone and Tecopa before turning west and then north into Death Valley.
		The Amargosa River where it crosses California Highway 127.
		The Amargosa River enters San Bernardino County through the Amargosa Canyon south of Tecopa, turns west and crosses California Highway 127, and then passes by Saratoga Spring at the southn end of the Ibex Hills, turning north into Death Valley, passing again into Inyo County.
	www.schweich.com /geoidxA.html (1758 words)

	The Inyo Register (Site not responding. Last check: 2007-10-12)
		But the mighty and sometimes unpredictable Amargosa, normally shy and flowing at about two cubic-feet per second under the surface of the dust-dry desert, is also the subject of a quieter and more somber study.
		And she added, some studies indicate that the Amargosa is fed by deep aquifers running from under the Yucca Mountain area into California.
		In January, the team visited locations all along the course of the Amargosa River from Beatty, Nev., to its terminus in the Badwater basin inside Death Valley National Park.
	www.inyoregister.com /articles/2005/03/07/news/928new03.txt (1173 words)

	N-STEP Geology Project (Site not responding. Last check: 2007-10-12)
		Lakes in Death Valley basin during the past 10,000 years were fed predominantly by surface runoff from the Amargosa River.
		The research questions to be addressed in the project focus on the response of the watershed and Amargosa River to rainfall events.
		This project may conducted at a very generalized scale for the Upper Amargosa drainage basin using the USGS Tecopa stream gauge or a on a smaller scale drainage basins such as China Ranch Wash.
	www.dri.edu /Education/NSTEP/1999/Geology.html (614 words)

	Amargosa Canyon - Trestle to Narrows
		From the upper side of the cut a view of the Amargosa River's handiwork can be seen in the sheer drop of the eastern hillsides.
		In flood, the river fills the width of the canyon, and the far hillside diverts the rushing waters back to the southwest before the gentler western slopes guide it back to a southerly flow.
		On the right side of the roadbed, near the edge of the drop to the river, is the location for the photograph of Harry Rosenberg's father supervising the Bridge Gang.
	www.ttrr.org /ac_walk/aw_p10.html (556 words)

	No title
		All of this has allowed seeds to germinate that have lain dormant for years, and the result is promising to be spectacular in the Mojave desert.
		One thing I have shown before is the course of the Amargosa River which is the river that fills Lake Manly in Death Valley, a lake that exists only during ice ages.
		Here is the Amargosa River again in 2005, with a sizable flow below sea level, moving into the deepest part of Death Valley.
	www.thoughtsandplaces.org /Lifein2005/Spring2005Rivers.htm (604 words)

	California Wild Spring 2001 - Habitats (Site not responding. Last check: 2007-10-12)
		And bordering Dumont Dunes is the Amargosa, the last free-flowing river in the Mojave Desert.
		Together, the descendants of Dad Fairbanks have inherited thousands of acres throughout the surrounding desert hills and, like their ancestors, they are still living close to the land, and they are still in love with it.
		The river is home to two endemic desert fish, one of which, the Amargosa pupfish, can withstand higher temperature variations and extremes of salinity than almost any other known fish on Earth.
	www.calacademy.org /calwild/2001spring/stories/habitats.html (1712 words)

	Information Bridge: DOE Scientific and Technical Information
		The presence and approximate rates of deep percolation beneath areas of native vegetation, irrigated fields, and the Amargosa-River channel in the Amargosa Desert of southern Nevada were evaluated using the chloride mass-balance method and inferred downward velocities of chloride and nitrate peaks.
		Estimates of deep-percolation rates in the Amargosa Desert are needed for the analysis of regional ground-water flow and transport.
		In areas where flood-induced channel migration occurs at sub-centennial frequencies, residence times in the unsaturated zone beneath the Amargosa channel could be longer.
	www.osti.gov /bridge/product.biblio.jsp?osti_id=811972 (710 words)

	Geology of Death Valley National Park
		Given their size, this may be the third largest marsh habitat in the Park behind the Saline Valley marsh in the western portion of the Park and Cottonball Marsh in central Death Valley.
		Valley Springs is located along the Amargosa River channel five miles northwest of Saratoga Springs.
		The input of water along various points of the river channel is responsible for the presence of permanent water along a two-mile reach of the river channel.
	wrgis.wr.usgs.gov /docs/usgsnps/deva/ftsar2.html (485 words)

	Floods 2001 (Site not responding. Last check: 2007-10-12)
		When purchased by Marta Beckett in 1961, the Amargosa Opera House in Death Valley Junction showed water stains three feet high on the walls.
		These photos were taken three days later, and all show heavy flooding and water flow still in normally dry, barren areas, from Death Valley Junction south to Shoshone CA.
		Except in times of flood, the river flows deep underground.
	www.h-o-m-e.org /Amargosa/Floods2001.htm (150 words)

	A Cactus Tour (1898) - 2
		Here were found the springs of the Amargosa River that disappear into the sand after a brief existence.
		The river consists of one such dried bed that traverses the Amargosa Desert and wends its way to Death Valley.
		It is flanked to the right by the Grapevine Mountains and to the left by the notorious Funeral Mountains, an extremely dry range that is nearly devoid of springs.
	ucjeps.berkeley.edu /Purpus/1898p2.html (1293 words)

	Friends of the River: California's State Wide River Conservation Organization
		Buck McKeon (R-Santa Clarita) has introduced in Congress H.R. 5149, a bill that adds 24 miles of the Amargosa River in Inyo and San Bernardino Counties to the National Wild & Scenic Rivers System.
		Years of lobbying finally paid off when the Bureau of Reclamation agreed to a minimum flow standard that protects the lower American River’s outstanding fishery and recreation values.
		Drop a note into your SMUD bill urging the Board of Directors to do as much as is necessary to restore the Upper American River in the process of relicensing SMUD dams.
	www.friendsoftheriver.org (289 words)

	[No title]
		On February 23-24, 1998, a regional storm produced 1.1-2.8 inches of precipitation in the Amargosa River Drainage Basin.
		For the first time since March 11, 1995, the entire Amargosa River and many of its tributaries flowed, causing minor flooding with road-overflow at several points along Nevada State Highway 373/California State Highway 127, and U.S. Highway 95.
		Both the 1995 and 1998 floods indicate that the Amargosa River and its tributaries have the potential to transport dissolved and particulate material well beyond the boundary of the Nevada Test Site and Yucca Mountain areas during periods of moderate to severe streamflow.
	nevada.usgs.gov /news/fs036-01-nr.htm (555 words)

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