Hello Lonna,
re:
I'm guessing yak trax would probably be OK? I've used these before while hiking on icy sections.
Not sure what sort of icy sections you hiked with YakTrax, but I would be
leery, bigtime of relying on them with an icy traverse like you may encounter on Skyline. They don't edge well at all, and if you try an angled front-point approach, you'll find they also fail, because--oh yeah, no front points.
And if you try heel-in toward hill -- heaven forbid-- get ready for Mr. Toad's Wild Glissade.
Best to reserve them for in-town type conditions, sidewalks, streets etc with minimal slope and less challenging terrain.
Re: ice axe/piolet, if you haven't spent a bit of time training/maintaining skills, you'll probably be much safer with sharp "grabby" hiking poles. Be careful about checking and re-tightening them with snow use. Cold contraction and snow-melt lube effect makes them more prone to unexpected collapse. So expect it.
Metal 'rock baskets', like Claws, can give added icy-conditions security, too. (personally, I'd opt for snow or powder baskets; just make sure your tips/carbides are sharp).
Have fun and stay safe,
kind regards,
arocknoid