11334
It has dumped clay and rock several meters deep into the Pemberton Valley at least three times during the past 7,300 " years .
 location: Pemberton Valley
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Pemberton Valley