87102
He realized that the stream he 'd referenced in 2005 was above the maximum Pleistocene lake level of any downstream flow-connected basins , and thus he doubts that redband trout ever made it to this elevated location .
 Pleistocene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pleistocene