Popocatépetl is an active volcano and , at NUMBER@1 m -LRB- NUMBER@2 ft -RRB- , the second highest peak in LOCATION@1 after the LOCATION@2 -LRB- NUMBER@3 m -RRB- .

PERSON@1 -LRB- also called LOCATION@3 or PERSON@2 -RRB- is an active volcano and the second highest mountain in LOCATION@1 after LOCATION@2 -LRB- NUMBER@4 m -RRB- .
