Not alaska, but as a kid there was a creek my Dad would take me fishing on. Maybe 100 yds from the creek I stumbled on a dump that every farm seemed to have. It was full of those old glass insulators that people seem to collect. Next time we brought our 22's and had a blast shooting those things. 100's of them. I remember them being pretty tough and if not hit right the bullet would bounce off. What would they be worth now?