I drove up from the backside today, apart from a fair amount of snow on the road(including snow actually coming down a bit as well), at least from that side it actually looks like a maintained road.
Now from the front side, I'd still say that the first slide is generally going to be a barrier to folks. I was driving a Tacoma with 32" tires(so you're looking at about 12" of ground clearance), and I had my tires in the ruts going thru the slide and moved forward until I was side-slipping a bit hopped out, and the front skid-plate was hitting the center burm, and it looked like the mud definately got deeper further along from where I was. I had already spent a half hour shoveling at a higher up slide so after judging how much I'd have to move to assure I could get thru I turned around and drove back out the backside. I just wasn't in the mood to be working a shovel *under* a stuck truck in the foot deep mud/clay.
Further up the other issues are a few small slides(as long as you don't mind riding over a 1" pile of firm dirt with one tire they're a non-issue), plus a 2' rock that is sitting dead center in the road(your choice, get over in the soft edge of the road, or crawl over rocks on the ditch side).
But the things that really concerned me were the 8'+ boulders which used to be a bit up, in the hillside which are now sitting immediately at the edge of the road. There are a few sitting just sitting on piles of dirt, with the start of small slides behind them. Given enough time/rain I think they'll probably fall onto the road, hopefully they'll roll across, but probably not. Then just up beyond the first slide, there is a big rut that running water has cut into the road in the last 2 months or so. Currently the rut is about 2-5" wide, and running towards a foot deep.
I still think that without some maintenance, the front-side access to the spires will probably not exist in a few years. The upside is that the backside doesn't seem to have any areas that are slide-prone, but due to less sun exposure it also has a lot more snow.