Uncle Josh’s is very handy, but you can also just Google something like “blank outline map” and the region you’re looking for. You’ll probably get several images that you can select from and print out.
I grabbed one of those big world maps that’s about 4-foot long at Wal-Mart to use as our “answer key” map. I just fold it down to the region we’re studying.
(Still waiting on our stimulus check . . . 🙁 )