Parkdale grange hall. Parkdale is an unincorporated community in Hood River County, Oregon, United States. For statistical purposes, the United States Census Bureau has defined Parkdale as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name.
Westward Expansion summary: The story of the United States has always been one of westward expansion, beginning along the East Coast and continuing, often by leaps and bounds, until it reached the Pacificâwhat Theodore Roosevelt described as the great leap Westward..
WESTWARD EXPANSION The boundaries of the United States of America in 1787, at the time of the British Colonies War for Independence, was: the Allegheny mountains to the west, St. Lawrence to the North, and the Atlantic Ocean to the south and east occupying the eastern part of the North American continent.ESTWARD EXPANSION The boundaries of the United States of America in 1787, at the time of the British Colonies War for Independence, was: the Allegheny mountains to the west, St. Lawrence to the North, and the Atlantic Ocean to the south and east occupying the eastern part of the North American continent.