Hard to say on wolf weight. This time of year wolves are gorging themselves with meat when they come across a carcass like this. The can ingest something like 25 pounds of meat which they then "transport" back to the den where the pups are. There the meat is regurgitated to feed the pups.
West of Lamar Valley by Slough Creek.
Griz pic posted last week. "Elk Calf" is the topic title.