I trust the long time list from Janice O'Neal and nothing like this appears. Maybe she is reading here.

Until someone confirms, I'll say it looks like a UFC.

Lake of the Torches, Lac du Flambeau, are the same place and opened with H&C chips that said "L.D.F."

If they are the first LDF chips, you have discovered a new chip from Wisconsin. At least the colors are right for casino use.

It does look like a milk can in a train tunnel. The logo itself should be the tip, if someone recognizes it.