For centuries, explorers and naturalists have described strange humming and booming sounds emanating from sand dunes disturbed by foot traffic or sandslides. Marco Polo described them on a journey through the Gobi Desert, and Charles Darwin noted them in Chile. If you hear noises in Death Valley (best chance: Eureka Dunes), credit a natural phenomenon Western science discovered in 1832, and the Chinese knew as early as 880 a.d. It goes something like this: Low frequency sounds occur when dry, closely packed sand grains slide over each other. The stationary sand underneath acts like a guitar backboard, amplifying the volume. Sand must be very dry to sing, with grains that are more rounded and polished than average. Singing dunes are found in China, the Sahara, the Middle East, South Africa, Chile, Baja California, Hawaii, Nevada, and Death Valley.
One Tough Minnow
A few of Lake Manly’s hardier descendants survive to this day, led by more than 20 populations of pupfish. Due to their long isolation in miniscule mineral springs, these chubby minnows diverged into 10 distinct subspecies, some bland, others colorful. They inhabit the most stressful "freshwater" environments on Earth; water temperatures range from 32°F to 113°F and fluctuate as much as 45°F in a day. Salt content varies from negligible to more than twice that of seawater. And on hot days, dissolved oxygen can drop to less than one part per million.
3.3 Size, in millions of acres, making Death Valley larger than Connecticut and all other national parks in the continental U.S.
1.3 Millions of acres added to Death Valley in 1994 when President Clinton signed the California Desert Protection Act, which redesignated Death Valley a national park
11,049 Height in feet of Death Valley’s highest point, Telescope Peak, in the Panamint Range
9,000 Years that the Timbisha Shoshone and their predecessors have occupied Death Valley
134 Temperature in degrees Fahrenheit on the hottest day ever recorded in Death Valley–and the United States–on July 10, 1913
136 Temperature recorded in 1922 in El Azizia, Libya, the world’s hottest spot
43 Number of consecutive days in 1999 that Death Valley recorded highs over 120 degrees F
0 The approximate odds for surviving a hard hike in those temperatures
1.9 Average annual rainfall in inches in the lower Death Valley basin
Prep This is a remote outpost with few amenities. Stock up in Las Vegas (2 1/2 hours) on food, fuel, water, sunscreen, and USGS topos.
Weather In Death Valley, you work with the seasons, because you can’t work against them. Summer temps hit 115°F, and winter windstorms rage hard enough to pit windshields. As Ed Abbey put it, "Here, they separate the desert rats from the mice." Spring and fall are prime time for mountain travel.
Cautions Deal with the lack of water by building hikes around water caches–or just carrying a lot of it (6 liters a day). Beware of flash floods during thunderstorms. Use caution when scrambling; the rock is rotten. Watch the ground; sidewinders abound in the washes.
Permits and regulations Overnight backcountry permits are not required, but registration is recommended. Camping is permitted 2 miles or more from a front country road, day-use area, or developed facility, and at least 200 yards from water.
Contact (760) 786-3200; www.nps.gov/deva