rammed earth buildings in Italy are probably the most durable continuously occupied what am.
Earthquake resistant too. Some of them even have timber frame roof trusses.
You want lasting, build one

I've done a little bit of research on sustainable building techniques. Timber framing is one of them, and is often combined with Strawbale, but I don't hear of it being used as structure for Rammed earth. I think it might be the best of both worlds, but I don't really know enough. I live in Southern British Columbia, and there's not much evidence of rammed earth structures around. Anyone know if this is a viable option considering the cold temperatures and heavy snowfall? thanks

rammed earth survives in climatic extremes.
A large portion of the great wall of China is primarily rammed earth with whatever brush was available not unlike modern use of rebar in concrete. Yes, the wall is thousands of years old and exposed to extreme weather and altitude.
Yes, in most cases it has a hand laid stone or brick facade. a similar structure for housing would hold up the weighty timber frame roof truss system with ease.