Two roads in one. This western section of Kiskatinaw Road is in reasonable shape until just past someone's (cabin? home? ...compound?) at KM 16.

KM 16 to KM 18 is grown-in and steep with an erosion ditch running down the center of the road and a number of hanging trees, but other than the ditch the road surface is essentially intact.

KM 18 to KM 19.5 has been left to its own devices, probably so noone's daft enough to use this as a road (ahem), and is essentially a mile-long mudpit. As so often in the northeast, you'll probably clear the road itself ok (except right after the snow melts) but are liable to find your front and rear ends having a violent disagreement on which direction is 'forwards' as everything's so slick, which is a disagreement that can end with the average result being 'directly into the ditch' if you're not expecting it.

Still, it's traversable if you really want to.

After ~KM 20 becomes PDR 531 (but still also Kiskatinaw Rd) and the KM markers reverse.