That sounds sweet that it's still being used, it was a fun mountain. Let me know what you find out locally man. I need to make a trip out there to see some people maybe we could check it out sometime
I could be mistaken but it doesn't seem like Dead Man's Flat even gets much snow... I recall a few pow days at SSV and LL when Canmore and even Banff were largely dry.
This is why it ceased being a ski resort back in the 70s, someone thought it was a great location because of how close it was to Calgary, they just didn't do enough research on the actual amounts of snowfall in the area before they went ahead and built it. I doubt it gets enough to even warrant a hike up it most years.
This (Zephyr Rapinchuk 1992?2011 | Lost Ski Areas of New England) is a link to a book put together by a high school student for his senior class project. It details the lost ski areas of New England. Tragically, he died at age 18 after hitting a tree while skiing at Jackson Hole a few years ago.