Guam Past and Present
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Charles Beardsley. Guam Past and Present
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The first of the two maps on the end papers shows Guam as Padre Alonso López saw it in 1675. The second map was made by Bellin in 1752.
by Charles Beardsley
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Rainy season covers the spring through autumn months, and generally the December to March period is relatively dry and windlessly oppressive. Good supplies of fresh water, however, have always been plentiful on Guam, and even today, with the population of nearly 70,000, by development of the Fena River Dam Project in the southern mountains, the piping of water to the dry northern savannahs too porous to hold water for themselves, and the miraculous continuance of underground rivers and springs, the supply for a demand greatly increased since aboriginal times is still sustained. The peculiar aspect of the highly porous northern plateau is that it absorbs water as readily as it falls. This makes for light vegetation except in shallow soil pockets where sediment has collected.
Interestingly enough, the northern plateau is a geological oddity—a raised coral platform penetrated in several places by low volcanic outcroppings seen as hills by Agassiz. No metal-yielding deposits of any consequence except layers of iron ore have been found there. There have been some small-scale findings of lignite and flint nodules, though nothing of importance.
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