Comment by mapt

Digging in arctic climates is just difficult. Soils freeze and gel.

Digging in semi-degraded postglacial till filled in with a few conifers (the Great Slave Lake site is largely talus/scree) is not especially productive in terms of clay.

I would love to see them invite Primitive Technology's John Plant on the show. I do understand if North Queensland is more his climate though.