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MapMaster 3

Atlas (Beta)
MapMaster 3

Major Drainage Basins

WorldPhysical Environment

The world's drainage basins: land areas where surface water converges to a single point

USGS

A map shows major drainage basins depicted as blue dashed lines. Some of the notable basins include Columbia, Colorado in North America; Amazon, Orinoco in South America; Niger in Africa; Danube in Europe; Indus in Asia; and Murray-Darling in Australia.

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Major Drainage Basins

Major Drainage Basins

Alaska
98.0%
Arizona
95.5%
Utah
47.8%
Yukon
26.5%
Northwest Territories
44.0%
District of Columbia
100%
Florida
98.4%
Idaho
0.316%
New Hampshire
0.302%
Rhode Island
92.6%
Vermont
4.27%
Washington
27.9%
Wyoming
21.0%
Nunavut
96.5%
Montana
0.445%
Maine
23.3%
North Dakota
42.0%
Kentucky
100%
Nova Scotia
94.2%
Virginia
55.4%
Delaware
97.0%
Prince Edward Island
61.9%
Saskatchewan
46.3%
Mississippi
49.8%
West Virginia
15.3%
Nebraska
100%
Texas
18.4%
Missouri
100%
Louisiana
91.0%
North Carolina
12.8%
Oregon
2.50%
New Brunswick
40.2%
Alabama
13.6%
New Mexico
54.2%
Kansas
100%
Wisconsin
69.3%
British Columbia
31.2%
Newfoundland and Labrador
0.795%
New Jersey
97.8%
South Carolina
99.9%
Michigan
100%
Alberta
29.9%
Connecticut
1.05%
Pennsylvania
64.1%
Colorado
7.14%
Nevada
10.9%
Massachusetts
2.45%
Georgia
2.66%
New York
45.5%
Maryland
93.5%
Québec
64.3%
Manitoba
47.7%
Oklahoma
100%
Tennessee
99.9%
Ontario
11.8%
California
2.37%
Arkansas
100%
South Dakota
0.773%
Ohio
71.3%
Indiana
89.5%
Minnesota
35.3%
Iowa
100%
Illinois
98.7%
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