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of the fact that I noted at the vol. of Calima. The Sierra Nevada of Calima is the main mt. & is not a volcano. The volcano rising on the southern base of the main mt. at an altitude of about 8000 ft. & has built up a cone to over 12000 ft. being still a couple thousand feet below summit of main mt.  

At Ajusco the volcano cone and crater are at north base of mt. and its energy was mainly spent in pouring out the great lava bed which flows down to Ilalpam & San Angel, with the ashes that lie along the eastern border of the upper part of the lava bed.