Mapmaster

MapMaster 3

Atlas (Beta)
MapMaster 3

Ocean Bathymetry

OceansPhysical Environment

Ocean depth, in meters

NOAA

A map illustrates the different depth zones of the coastal areas. The shallowest areas (light blue), are near the coasts, such as the eastern United States and Europe. The deepest regions (dark blue), are in the Pacific and Atlantic Oceans.

Shallow ocean areas near continents' coastlines range from sea level to negative 200 meters and are shaded in light yellow. Continental shelves and upper slopes, shaded in yellow, are found between negative 201 to negative 2,000 meters. Mid-ocean depths, including parts of the abyssal plains, range from negative 2,000 to negative 3,000 meters and are shaded in orange. Deeper ocean areas, extending further into the abyssal plains, range from negative 3,000 to negative 4,000 meters in dark orange. Deep ocean regions, covering significant portions of the ocean floor, range from negative 4,000 to negative 5,000 meters in dark brown. Very deep ocean trenches and basins are found between negative 5,000 to negative 6,000 meters and are shaded in blue. The deepest parts of the ocean, including the Mariana Trench and other deep-sea trenches, are below negative 6,000 meters and are represented in dark blue.

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Ocean Bathymetry

Major Territorial Acquisitions (U.S.)

Sea Level to -200

-201 to -2000

-2001 to -3000

-3001 to -4000

-4001 to -5000

Extent of U.S., 1803

Louisiana Purchase, 1803

West Florida, 1810–1813

British Cession, 1818

East Florida, 1819

Northern Maine, 1842

Texas Annexation, 1845

Oregon Country, 1846

Mexican Cession, 1848

Gadsden Purchase, 1853

Alaska, 1867

Hawaii, 1898

Yukon
0.521%
Northwest Territories
5.35%0.496%
Nunavut
13.1%0.925%
Nova Scotia
25.6%
Prince Edward Island
100%
New Brunswick
4.32%
Newfoundland and Labrador
3.93%
Québec
1.33%
Manitoba
0.281%
Ontario
0.732%
Alaska
5.00%0.196%94.5%
Arizona
76.2%23.8%
Utah
100%
District of Columbia
97.6%
Florida
5.18%98.3%
Idaho
99.8%
New Hampshire
99.9%
Rhode Island
12.2%97.7%
Vermont
99.9%
Washington
0.845%99.4%
Wyoming
70.3%4.53%12.4%12.7%
Montana
82.4%17.6%
Maine
1.83%82.4%16.6%
North Dakota
57.6%42.4%
Kentucky
99.9%
Virginia
1.98%99.5%
Delaware
0.467%98.0%
Mississippi
92.2%7.44%
West Virginia
100%
Nebraska
100%
Texas
0.376%99.5%
Missouri
99.7%
Louisiana
2.97%86.4%12.4%
Hawaii
1.62%37.5%4.46%2.11%0.113%91.5%
North Carolina
1.71%99.2%
Oregon
99.8%
Alabama
0.218%95.7%4.16%
New Mexico
57.5%40.3%2.23%
Kansas
91.7%8.26%
Wisconsin
99.8%
British Columbia
3.13%0.166%1.43%
New Jersey
10.6%99.0%
South Carolina
0.154%99.6%
Michigan
99.9%
Connecticut
2.84%99.6%
Pennsylvania
100%
Colorado
41.3%32.3%26.4%
Nevada
99.9%
Massachusetts
10.2%0.220%98.1%
Georgia
99.8%
New York
2.96%99.4%
Maryland
6.45%96.9%
Oklahoma
91.6%8.45%
Tennessee
99.9%
California
1.53%0.275%99.7%
Arkansas
99.8%
South Dakota
99.1%
Ohio
100%
Indiana
100%
Minnesota
33.8%45.1%20.9%
Iowa
99.8%
Illinois
99.7%
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