I was up there sept 30 to the 5th of oct. Two sheep hunters Clint and Dave from the kootneys found a axe, wooden handle about 1 1/2 feet long , head made in germany and a leather cover that looked hand made with metal rivets on one end and lether lace to hold it on the axe head. They said they would report it to parks people for heritage reasons as they thought it might be an axe from an old outfitter. Not sure if this might help. If it does get a hold of Dale the pilot at tatoga lake he would have their names in the log book.
May some lead bring you closer to your goal of finding some of your questions answered.
Brian
kelowna