Sheila, wow, nowhere near that 82cm. I usually run about 70cm on my MTBs (my clothing inseam in 31" or 32"). That's a bit lower than I do for road bikes, but I stay with the low seat height for my style of trail riding. Don't spend a lot of time in the seat. Can't afford to have it in the way, which it is when I set it too high.
Thanks, Sky. It hasn't been under 60% humidity here in weeks, with some days over 70% and in the upper 80s. Really could use some of that dry desert air. Have absolutely no doubt about that mileage comparison. Way different kind of bicycling.
Shootingstar, have only been to Banff, once, but I think it must be one of the most beautiful places on Earth.

