Went to a camping in the Laurentians in Québec (Ste-Agathe) and there were those things near some camp sites. The sites are only accessible by footpaths. No car access. And if you bring a bike, you have to walk it up a hill, so I doubt they are bike racks.
EDIT: I have sent an email to the park and they have been kind enough to reply. It's just a type of fireplace with a grate. They didn't give more info than just this. Thanks to everyone for pitching in!
Nice steady pic. Especially with sasquatch looking on... waiting to tie his mule up before taking a dip in the stream?
I didn't know a sasquatch could take the form of a white birch!
Usually Sasquatch is blurry.