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Lipman returned in the 1980s and again with other geologists in the 1990s. Each time they had newer, better equipment that allowed them to sleuth out more of La Garita's puzzle pieces. By 1996, geologists had mapped the La Garita caldera as a 20 mile by 50 mile oval. The Bandelier Tuff that marks the Valles Caldera is about 14 miles in diameter.
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It was my understanding that the volcano whose collapse formed the Valles Caldera soared to an estimated height greater than Mt Everest....
Los Alamos is on the eastern slope ....elevation 7000+ feet.
Info:Valles Caldera
I have been over much of Colarado,...but this is new to me...
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La Garita Caldera is a large volcanic caldera located in the San Juan volcanic field in the San Juan Mountains in southwestern Colorado, United States, to the west of the town of La Garita, Colorado. The eruption that created the La Garita Caldera was, perhaps, the largest known explosive eruption in all of Earth's history (the Siberian Traps may have been larger but the cause is still being debated).
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I have not been to Creede:
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Creede is located near the headwaters of the Rio Grande River, which flows through the San Juan Mountains and the San Luis Valley on its way to New Mexico, Texas, and eventually into the Gulf of Mexico.