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below sea level. These two points, both in California, EXTREME AND MEAN ALTITUDES OF U.S.

are only 86 miles apart. (See figs. 50, 51.) TERRITORY AND THE CONTINENTS

The following list (table 9) is given to permit a comThe following altitudes (table 8), which give the parison between altitudes in the United States and height of the land above sea level, unless otherwise those in other parts of the world. These figures are substated, were determined by the Geological Survey. ject to change as better maps become available. HowInasmuch as the United States is not entirely mapped, ever, the information on North America is accurate. the locations of the highest and lowest points, as well The altitude of Mount Everest was reported to the as the values given for some of the points, are doubtful National Geographic Society by Brigadier I. H. R. and are subject to change as the areas are mapped. Wilson, Surveyor General of India, as 29,028 feet. This

The highest point within the conterninous 48 States determination was made by the Survey of India from is Mount Whitney-14,494 feet above sea level. The observations and calculations in 1952–54. An accurate lowest point of dry land is in Death Valley—282 feet altitude for the summit of a mountain as high and as Highest and Lowest Points in the Conterminous United States, Both in California

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and Only 86 Miles Apart

FIGURE 50 (above).—Mount Whitney, 14,494 feet above sea level. View is from

Owens Valley. (Photograph by Bruce Barnbaum, Los Angeles, Calif.)

FIGURE 51 (opposite).-Two views of Death Valley:

Above, Badwater, the lowest area in the valley at 282 feet below sea level,

and Telescope Peak in the Panamint Range in the background. (Photograph by Josef Muench, Santa Barbara, Calif.)

Below, View across sand dunes toward the Armagosa Range. (Photograph

by Bruce Barnbaum, Los Angeles, Calif.)

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Nevada

Esmeralda

Clark

470

White Mountains

13,143 Colorado River

5,500

New Hampshire
New Jersey
New Mexico
New York

Boundary Peak.
Mount Washington
High Point
Wheeler Peak
Mount Marcy

Coos
Sussex
Taos
Essex

6,288 Atlantic Ocean
1,803 ----do
13,161 Red Bluff Reservoir
5,344 Atlantic Ocean

Sea level
----do
2,817
Sea level

1,000

250 5,700 1,000

Eddy

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Virginia
Virgin Islands

5,729 Atlantic Ocean 1,556 ----do

Sea level

do

950 750

Mount Rogers

Grayson-Smyth Crown Mountain

14,410 Pacific Ocean 4,862 Potomac River 1,952 Lake Michigan

Jefferson

--do 240 581 3

1,700 1,500 1,050

3

13,804 Belle Fourche River - Crook 20,320 Death Valley

Inyo, Calif

3,100 -282

6,700 2,500

3 Corps of Engineers.

* Mean sea level of the Pacific at Panama is 0.7 feet higher than mean sea level of the Atlantic at Colon.

Lowest point

Location

Ap

proxi. Feet

mate below

mean sea

alti. level

tude (feet)

20,320 Death Valley, Calif. (fig. 51). 282 2,000 22,834 Salinas Grandes, Peninsula 131 1,800

Valdez, Chubut Province,

Argentina. 18,481 Caspian Sea, U.S.S.R., and 92

980 Iran. 29,028 Dead Sea, Israel and Jordan 1,286 3,000

(fig. 53). 19,340 Qattara Depression, Egypt 436 1,900

7,316 Lake Eyre, South Australia.

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Island of St.

Thomas.
Mount Rainier (fig. 52) Pierce
Spruce Knob

Pendleton
Timms Hill

Price

Washington
West Virginia
Wisconsin

Wyoming
United States

Gannett Peak
Mount McKinley

Fremont
Alaska

1 See U.S. Geological Survey (1893, pt. 2, p. 284-289) for method of finding mean altitudes.

• Coast and Geodetic Survey.

Table 9.-Extremes of altitude in the continents

Highest point

Location

Feet
above
sea-level

North America
South America --

Mount McKinley, Alaska
Mount Aconcagua, Ar-

gentina.

Europe

Mount El'brus, U.S.S.R.,

Caucasus Mountains.
Mount Everest, Nepal --

Asia

Africa

Australia

Kibo Peak (Kilimanjaro),

Tanganyika Territory.
Mount Kosciusko,

New South Wales.
Vinson Massif Group,

Ellsworth Mountains.

Antarctica

16,860 Sea level

6,000

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