claim: Brian De Palma is an American citizen.
evidence: Nevado San Francisco , or Cerro San Francisco -LRB- -LSB- sam fɾanˈsisko -RSB- -RRB- , is a stratovolcano on the border between Argentina and Chile , located just southeast of San Francisco Pass .. Argentina. Argentina. Chile. Chile. stratovolcano. stratovolcano. San Francisco Pass. San Francisco Pass. It is considered extinct and is one of the several 6000 m peaks in the area , of which the chief is the Ojos del Salado .. Ojos del Salado. Ojos del Salado. The volcano is composed from andesite with the exception of basaltic cones and lava flows on the eastern side .. andesite. andesite. These cones are part of the Peinado lineament and a sample was dated 200,000 years ago by argon chronology .. On the summit lie two circle-shaped constructs , of Inca or Formative period ages .