my brother worked at Mesa Verde. That park is kinda busy.

On the way back east I met up with him and went to see the ruins at Chaco Culture national park (mentioned in the article).

its beautiful but not super popular. Its far away from things and marginally difficult drive. You can stay overnight at a camp ground on site. The ruins are really interesting, but they know very little about the people who made them, and the wildlife is less prevalent, so its not for everyone. All those reasons make it less popular.

I think wildlife is the big draw of the more popular parks.

The directions give some idea of how remote: https://www.nps.gov/chcu/planyourvisit/directions.htm

pictures https://www.nps.gov/media/photo/gallery.htm?id=9CAF0AAE-155D...