Conversation so far:
where is the proposed pebble mine in alaska?
Pebble Mine is proposed to be built in the headwaters of Bristol Bay, Alaska.
how much is Pebble Mine worth?
officials estimate it contains 67 billion pounds of extractable copper, 82 million ounces of gold, and 4 billion pounds of molybdenum at current prices worth $345 billion to $500 billion.

Question: how far is the mine from Bristol Bay?
Self-contained rewrite: how far is Pebble Mine from Bristol Bay?