537
It is also located at the east end of Lake Erie , and during the spring , large blocks of ice often flow down the river , threatening to destroy any bridge placed in its path. There are also major financial challenges in a project such as this .
 Lake Erie
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Lake Erie