Was camped at the airstrip from Oct 15 to Nov 1 last year myself. I think it was the 3rd day there we woke up to a solid foot of snow. Chains for the truck and quad are a must to bring, make sure you have 4 chains for the truck if it gets warm / slick and you want a hope of getting back out to the highway with a toyhauler. There was a performance on the big hill while we were there involving a pickup, gooseneck horse trailer, and another pickup that didn’t go well for everyone involved.
Grizz are plentiful in the area. Expect to be actively hunted by them, especially with an animal down. If there’s snow on the ground you’ll see what I mean. One followed my boot and quad tracks over 14 km one night.
We saw lows of -16C in late Oct, so don’t expect LML weather. Most days saw melting temps, especially when sunny, but once that sun drops.... High, gusting winds are a reality at times at the airstrip too, make sure to tuck your camp off to the side and tie any tents down WELL!
Trimble Ck to the airstrip is about 35Km as said, at least according to my odometer with oversized tires. 2 hours at a reasonable pace is accurate, but I won’t say it can’t be done in an hour and ten if an animal is down, night is falling, and you’re going for the rest of the group and a quad trailer. An hour and 45 with a heavily loaded trailer. That’s pushing hard, to say the least.
It’s pretty awesome, wild country once you put the boots to work and venture off the beaten trail and all the other draw winners, and thanks to bison being a mainly herd animal, any success in accessible areas is usually followed by heavy “gutpile hunting” from other hunters.
Enjoy, be safe, and go prepared for anything. Having done the late Oct. hunt twice now, my #1 advice is to over-prepare on how to stay /get warm. Heated grips and a full windshield. Heavy bib overalls with legs zips for when you’re on the quad. Good mitts. A nice stack of dry firewood for the stove if tenting. A propane torch to carefully pre-warm the quad engines if needed, they can be grumpy to start below -15. Even a small generator and battery charger is a good thing to have along too.