Popocatepetl, the second highest volcano in Mexico, is a giant stratovolcano, 70 km (~45 miles) southeast of downtown Mexico City, and 45 km (~30 miles) southwest of the city of Puebla.
Guam Currency (code) Guam > Economy. Currency (code): US dollar (USD) Definition: This entry identifies the national medium of exchange and, in parenthesis, gives the International Organization for Standardization (ISO) 4217 alphabetic currency code for each country.
The island of Guam is in the North Pacific Ocean, south of the Northern Mariana Islands and north of Papua New Guinea. It has a population of approximately 160,000. Guam is a self-governing territory of the United States of America. The President of the United States is Guam's Head of State.