Why is the man out in the cold? He got lost from the group he was with. He is trying to find somewhere to sell his biscuits and bacon. He is pursuing a job that he heard about for the spring. He is headed to a camp to meet some others who already arrived.

This question is about "To Build a Fire"

He is headed to a camp to meet some others who already arrived.

Explanation:

"To Build a Fire" tells the story of a man who decides to walk in the extreme cold, with his dog, to meet some friends in a camping trip.

This trip is very dangerous, due to the extremely low temperature, but the man ignored not only the danger, but the advice of everyone about not being able to go out in such a cold climate, as he could suffer a lot, in addition to dying. However, the man does not care and continues walking, suffering all the effects that the cold can provide.