For archives of work pre-2016, check out the Bruce Peel Collection and the collection on archive.org. The Gateway’s digital archives are a collaborative project with University of Alberta Libraries. There, you’ll find scanned pages of every issue dating back to The Gateway’s very first publication in 1910 — and all in fully searchable PDF form!
The Gateway previously published a monthly magazine from 2016 to 2021. The issues can be accessed at the link below.