To give all in Oz a point of reference I will use Hobart Tasmania.
Hobart is on the 42 latitude south, The equivalent latitude north passes through Pocetello in Idaho (due south of here) and Chicago on the Great Lakes.
If you were to travel 840klm (road distance) south of Hobart you would be on the 49th latitude, this is the same latitude as the Canada US border.
Another 620 klm south and you are on the 53rd latitude, the same latitude as Edmonton. (Macquarie Island is on the 54th latitude)
Another 1500klm south and you are on the 62nd latitude, the same latitude as Yellowknife.
Another 450 klm south and you are on the 64th latitude this is the same latitude as Diavic Diamond Mine. Approx 250 klm from the Arctic Circle.(Casey research station in the Antarctic is on the 66th latitude)
Or in land drive distances, If you were to drive the distance from Hobart to Townsville, south of Hobart, you will be as far south as Diavic is North.
The distance from Edmonton to Diavic is the same as from Peak Hill (south of Dubbo) to Townsville.
These trucks are actually parked on a small lake, it is only shallow and solid ice so is safe to park on till spring thaw.
A crack in the ice, there are a lot of these but they are not a safety issue
Moon over Lockhart lake as seen from the Lockhart Lake Camp
This is what it looks like from the cab, quite repetitive after a few hours as the loaded travel speed at 25klm/hour on most lakes, but does increase to 30Klm/hour on the more northern lakes. Travel speeds when empty are increased by 10 k /hour, and on designated express lanes for empty trucks 60klm/hour is allowed.
The weather was quite kind for the first trip according to the locals, only down to -37 but not much wind. I spun out (lost traction) on a portage, and had to put the chains on, it is surprising how adrenaline can make you oblivious to the cold, I had 8-12 trucks waiting for me to get mobile so we could all continue, ( no one could pass me where i spun out) in the rush to fit them i removed my gloves to do up the links, and I can tell you chains at -37 degrees and warm hands do not mix, Fortunately the was no moisture and my hands did not freeze to the chain links, and am I appreciative of that.
Though I did have a Dumb and Dumber moment the other day, it was in the -35 to -40 range and I unlocked the truck door with the key, i had a cup of coffee in the other hand, and instinctively put the key into my mouth so I could open the door with my free hand, the key at -35 immediately froze to my tongue and lip, luckily a key is small and the heat of my mouth warmed the key in a few seconds and i was able to free it without loosing any skin.