Yes you can buy gas cylinders like those in Alaska .Coleman is a North American company , however you will find small propane cylinders much more common .
BTW Trangia fuel is available at every gas station in Canada and also in every hardware store , it's called methyl hydrate [ methanol] or gas line and airline antifreeze ,used to displace ice in sub zero temperatures . It's also a much better fuel than good old British "meths".
Blessed are the cracked, for they let in the light. - Spike Milligan
"When you come to a fork in the road ,take it ! When you come to a spoon in the road ,take that also ."