Seqoia was the national park I've felt the least safe in. I guess it's flat and not big but I remember walking on one of the main trails and suddenly hit a bunch of snow and quickly was lost in a large area of endless snow and ran into a few other people who had the same issue and there was no service. It was deep snow and there were ponds and stuff around which we knew we could slip into. Eventually just walked around and got lucky enough to hit a trail. Was mega sketchy and I guess like Muir or some shit wanted it to be untouched so there were no warning signs or anything.
Morro Rock was also sketchy as shit. Mega steep walk up with no railings and way too many people with barely enough space to go past each other.
Sequoia NP stretches from ~1300ft to Mt. Whitney at 14500, the highest point in the 48. Sequoia is legitimately the least flat National Park in the 48, and it's huge. In combo with Kings Canyon NP it's even huger (it's essentially one park, really). Anyway, I've climbed several 14ers in Sequoia NP and boy are they anything but flat. I had to correct this record.
Careful out there Woolley. Cell service and warning signs on trails are very rare in national parks. The warning signs are at the entrance to the park, trailheads, visitor centers, and in your senses. Gotta have your wits about ya, most importantly, or you'll end up on this list!
That being said, snow is no joke, and it's probably the biggest killer/maimer on this list. Especially scary when melt/freeze cycles start in spring and around tree wells. Lots of risk for those things in the lower Sequoia elevations.
