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North American Nebula

(Encyclopedia)North American Nebula, bright diffuse nebula in the northern constellation Cygnus about 1000 light-years away; cataloged as NGC 7000. It has a configuration resembling parts of Canada and the United S...

Tennessee-Tombigbee Waterway

(Encyclopedia)Tennessee-Tombigbee Waterway, system of navigation channels, 234 mi (377 km) long, Ala. and Miss., connecting the Tennessee River with the Tombigbee River and, via the Mobile River, with the Gulf of M...

Mobile Bay

(Encyclopedia)Mobile Bay, arm of the Gulf of Mexico, SW Ala., from 8 to 18 mi (12.9–29 km) wide, extending c.35 mi (56 km) from the Gulf to the mouth of the Mobile River. A ship channel connects Mobile Bay with t...

Port Charlotte

(Encyclopedia)Port Charlotte, uninc. town (1990 pop. 41,535), Charlotte co., SW Fla., on Charlotte Harbor (an inlet of the Gulf of Mexico) and the Peace and Myakka rivers. It is a planned residential community—on...

Guadalupe Hidalgo, Treaty of

(Encyclopedia)Guadalupe Hidalgo, Treaty of, 1848, peace treaty between the United States and Mexico that ended the Mexican War. Negotiations were carried on for the United States by Nicholas P. Trist. The treaty wa...

National Museum of Anthropology

(Encyclopedia)National Museum of Anthropology, Mexico City. The present building, designed by Pedro Ramírez Vázquez and inspired by ancient Mexican architecture, was opened in 1964 and houses choice and extensive...

Mississippi Sound

(Encyclopedia)Mississippi Sound, arm of the Gulf of Mexico, c.100 mi (160 km) long and from 7 to 15 mi (11–24 km) wide, extending from Lake Borgne in Louisiana on the west to Mobile Bay in Alabama on the east. It...

Tampa Bay

(Encyclopedia)Tampa Bay, inlet of the Gulf of Mexico, 25 mi (40 km) long and 7 to 12 mi (11.3–19 km) wide, W Fla., separated from the Gulf by numerous small islands; it receives the Hillsborough River. St. Peters...

Ten Thousand Islands

(Encyclopedia)Ten Thousand Islands, group of small islands in the Gulf of Mexico, off SW Fla., covered with mangrove forests and surrounded by clam beds. Most of the islands are in Everglades National Park. ...

Corinth, Isthmus of

(Encyclopedia)Corinth, Isthmus of, c.20 mi (32 km) long and 4–8 mi (6.4–12.9 km) wide, connecting central Greece (Attica and Boeotia) with the Peloponnesus, between the Gulf of Corinth and the Saronic Gulf. It ...