Drove up the Callaghan FSR, then the Northair Mainline and turned on Blks C328 C327. At 1 km in we turned left onto the Northair Branch 2 which eventually will lead up to a snowmobilers cabin and the many biking trails of the Rainbow-Sproatt network of trails. We parked our car (Crosstrek, A/T tires, new FSR driver) at 200 m up this branch (~1100 m elevation) where there is space to park. Callaghan FSR was in good condition. The Northair, Blks C238 C237, Branch 2 were a little rougher, more potholes, small hills with uneven, rocky surfaces. We continued to hike up the rest of the road on our way to the Rainbow Lake area. A Toyota Tacoma managed to go up the deteriorating road to the 1300m elevation (just before the 2km mark on the map). After that the road is pretty much impassable (novice opinion) for a vehicle (very steep, narrow, lots of loose rocks). First three photos are of the road up to the 2km mark and the rest of the photos are from what I would think is impassable...