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Curated OER
Etc: Maps Etc: Density of Population in the u.s., 1901
A map from 1901 of the United States showing the population distribution at the time. The map is keyed to show areas of population densities ranging from sparse to very dense. This map is part of a classroom map study illustrating how,...
Curated OER
Unesco: Cameroon: Sangha Trinational
Situated in the north-western Congo Basin, where Cameroon, Central African Republic and Congo meet, the site encompasses three contiguous national parks totalling around 750,000 ha. Much of the site is unaffected by human activity and...
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