In one four-month period in 2013, for instance, police seized 181 kilograms of pot on Alberta highways, the bulk of it in the Lake Louise area.

Sometimes the busts come in waves, with three seizures over two days during that time period netting 80 kilograms of bud.

Even so, it’s likely a drop in the bucket in the total amount of pot being transited, RCMP Supt. Howard Eaton said at the time.

“When you think about the volume of vehicles going through Alberta, we’re probably getting a small percentage of what’s actually moving through it,” he said