One dark, cold evening this week as I was in this tent using the facilities, I heard foot steps to the left.  They were very close. 

This is the facts:

• Remote camping spot.
• Only campers were us.  
• Everyone was at the main tent area while I was in the blue tent.
• Something on 2 feet was walking around.
• The crunch sounds of the foot steps were from walking on the pinecones and bare ground and not on the snow.
• It sounded very close.
• The steps walked quickly away when I stood up.
• Did not see or hear anything when I left the tent.

What are the possibilies of what I heard?

• Everyone was accounted for during this time.
• No possibilities of other campers.
• Heard distinct bipedaled foot steps.  No doubt or question.

I heard distinct foot steps.  There was no doubt of what I heard.  There was something that was bipedaled walking around me while I was using the facilities.  A bit unnerving but exciting. 

WHAT ELSE COULD IT BE?