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La Laja cone is 12 ± 4 thousand years old by 40Ar/39Ar (Gutmann et al., 2000). This photo was taken in March 1970. The top of the cone has since been removed during cinder mining operations. Cerro Colorado is in the background.
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La Laja cone is 12 ± 4 thousand years old by 40Ar/39Ar (Gutmann et al., 2000). This photo was taken in March 1970. The top of the cone has since been removed during cinder mining operations. Cerro Colorado is in the background.
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