Went as far as roughly KM 3.5. The road was completely snow covered and very icy. I don't believe any vehicle will make it up the hill from the highway to where the road crosses the pipeline. However it was easy enough on a snowmobile.

KM 1- 2 Is fairly steep. Being so icy made it difficult, without snow this section could be difficult if its dry and loose.

KM 3-3.5 started to get a little scratchy with the alder and continued as far as I could see.

Nothing apparent under the snow that seems like it would stop a vehicle come summer.