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In page History of Greenland:

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The Norse settled in three separate locations in south-western Greenland: the larger Eastern Settlement, the smaller Western Settlement, and the still smaller Middle Settlement (often considered part of the Eastern one). Estimates put the combined population of the settlements at their height between 2,000 and 10,000, with recent estimates[6] trending toward the lower figure. Archeologists have identified the ruins of approximately 620 farms: 500 in the Eastern Settlement, 95 in the Western Settlement, and 20 in the Middle Settlement.[citation needed]