Typically, the snow is at or near valley bottom so you have to ski or walk from Chilliwack River Road or near there.
Rexford is much less aldery.
The West Lion is a good route, snowy rock climbing with plentiful trees for pro. Bring some bigger hexes or Tricams; it can be difficult to get large cams to seat in icy cracks but hexes can be hammered in, and Tricams' beaks dig into ice and hold.