This isn't really a landscape so maybe it goes under "Universe"?
I spent a few days with friends at their "cabin" at the north end of Priest Lake, and we were lucky enough to get a cloud break and see the aurora borealis. Nikkor 20mm f3.5 AIS, Nikon D850, Hakuba tripod, Manfrotto ballhead. ISO 3200, f3.5, 6 seconds.