Книга: Gannett Henry «The forests of the United States»

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• The United States of America —     The United States of America     † Catholic Encyclopedia ► The United States of America     BOUNDARIES AND AREA     On the east the boundary is formed by the St. Croix River and an arbitrary line to the St. John, and on the north by the… …   Catholic encyclopedia

• Eastern savannas of the United States — The eastern savannas of the United States covered large portions of the east side of the continent until the early 20th century. These were in a fire ecology of open grassland and forests with low ground cover of herbs and grasses.The frequent… …   Wikipedia

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• Historic districts in the United States — The federally designated Sycamore Historic District in Illinois In the United States, a historic district is a group of buildings, properties, or sites that have been designated by one of several entities on different levels as historically or… …   Wikipedia