Looking at Canyon de Chelly backcountry camping visitation by month:
Backcountry camping went from usually more than a hundred per month, up to several hundred per month, throughout spring, summer (except for August, which is probably too hot), and fall in the 2000-2017 period, then collapsed to just a handful per month in 2018 (and with August now the most popular month!). What happened? Did it become nearly prohibited?
Or did they just stop counting or change definitions?