on red volcanic rhyolitic tuff outcrop above river in lower canyon. This site is likely destroyed or no longer easily accessible due to construction of a new paved highway to Batopilas
on red volcanic rhyolitic tuff outcrop above river in lower canyon. This site is likely destroyed or no longer easily accessible due to construction of a new paved highway to Batopilas
on red volcanic rhyolitic tuff outcrop above river in lower canyon. This site is likely destroyed or no longer easily accessible due to construction of a new paved highway to Batopilas