Hi Robert,

I do not think we've covered ENSO and mountains specifically.  Though this article about snow during La Ninas is the closest https://www.climate.gov/news-features/blogs/enso/what-about-snow-during….

There have been other articles on climate.gov that touch on mountain meteorology though. The first is an article from ouy Beyond the Data blog

https://www.climate.gov/news-features/blogs/beyond-data/highs-and-lows-…

The second is about climate and skiing

https://www.climate.gov/news-features/climate-and/climate-skiing