Georgetown's three urban campuses are laid out using quadrangles and rectangular lawns, with various facilities for research, sports, housing, and services.

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The august colleges, hushed quadrangles, manicured lawns and cobbled laneways give way to "The Backs, " a stretch of picturesque gardens bordering the meandering River Cam.

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So Grotzinger cropped out a hundred and fifty square miles around the landing area and divided it into quadrangles of about a mile on a side.

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