Death Valley '49ers finally discovered and rescued by Mexican Californios cowboys from Rancho Ex-Mission San Fernando, located near present-day Santa Clarita Valley. Death Valley '49ers The Death Valley '49ers were a group of pioneers from the Eastern United States that endured a long and difficult journey during the late 1840s California Gold Rush to prospect in the Sutter's Fort area of the Central Valley and Sierra Nevada in California. Their route from Utah went through the Great Basin Desert in Nevada, and Death Valley and the Mojave Desert in Southern California, in attempting to reach the Gold Country. On January 24, 1848, James
Death Valley pupfish is 4 times more saline than the ocean, hot water up to , and cold water down to . This species is known from only two locations in Death Valley: Salt Creek (subspecies "salinus") at about 49 meters below sea level, and Cottonball Marsh (subspecies "milleri"), at about 80 meters below sea level. They are thought to be the remainders of a large ecosystem of fish species that lived in Lake Manly, which dried up at the end of the last ice age leaving the present day Death Valley. The Salt Creek subspecies is also found at River Springs and