Major rocket events are constrained by clubs who are willing (crazy enough?) to host them. SCORE in Pueblo hosted NSL in 2013, then NARAM-56 (2014) and NARAM-60 (2018). As I understand it they had done both NSL and NARAM before that as well (before I came back to the hobby).
As noted by Steve the folks in Alamosa hosted NSL in 2021 (after it was canceled in 2020 by the pandemic) and they are hosting "NSL West" next May as Rob said. (I'm going to have to miss that one — too many other events vying for my rocket time/travel money next year, unfortunately.)
Chile Blaster and Spudnik are the clubs' own events, rather than national NAR events.