I've been able to hit RYC from pretty much anywhere in Maclean. Obviously in the bottom of a valley is not the best spot. And if there are issues, a quick wheel up the nearest hill will allow for getting to RYC.
As for Waiparous, I can't remember the repeaters; but I do carry a clipboard in the heep with repeaters, freq's, and DTMF codes necessary for the repeaters where there is wheeling (nwham link above works great).
I use an Icom IC-V8000; 75w max 2m only rig, and a "very" nicely tuned 5/8 wave whip for the middle of the 2m band. I went with over 1/2 wave due to groundplane issues (unless the antenna is in the middle of the hood, a wrangler has no appropriate ground plane).
Same with my CB, I use a 5/8 wave whip, "nicely" tuned for channel 19.
Both antenna's are mounted on my spare tire carrier, on the tailgate. No extra grounding from the carrier to the frame.
Both work redonkulously well! Plus being Stainless steel whips allows for plenty of tree bashing, with no damage.
Going HF for emergency issues (in my opinion) is spotty. Back in the bush, you could get propogation issues out to saskatchewan, and then what is the listener there going to do?
Best bets (in my opinion) are a 60+ watt 2m or 2m+70cm rig. VHF is pretty quiet, and with "decent" line of sight, you could hit a repeater downtown calgary. (But who listens to VHF anyways!
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If you can hit any repeater, and get a confirmation tone back, you can get help. Even if there is no activity on that repeater, a "PAN-PAN" or "EMERGENCY EMERGENCY EMERGENCY" will get a response. If the repeater has an auto-patch, ultra bonus. 911 dispatch will send STARS.