Drive up as far as we can on Brohm ridge (will have some sort of 4x4, depending on which car, we might have to walk for a while). Then drop down into the valley. This is completely unexplored territory for me, so we'll probably have to backtrack a few times. 

An example track (though entirely untested): https://fatmap.com/routeid/3023249/the-table-approach?fmid=cp

Meet early in the morning, and will be back in Vancouver by 5pm latest.