Assertion: volcano's vent | /r/AtLocation | southern flank of the caldera
Facets:
Source sentences:
text: This deposit, called the Newberry pumice, reaches a thickness of 12 feet (3.7 m) up to 5.5 miles (8.9 km) from the vent that produced it, which is located at the southern flank of the caldera, and a thickness of 10 inches (25 cm) up to 40 miles (64 km) from the volcano.