51417
The glacier described was mapped by United States Geological Survey ( USGS ) , 1960 – 63 , and was so named by Advisory Committee on Antarctic Names ( US-ACAN ) because ( with Fendley Glacier to the east ) it nourishes the Simpson Glacier Tongue .
 United States Geological Survey
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 United States Geological Survey