Semi-remote subalpine camping and hiking in BC?

The vast majority of BC backroads were industrial roads, created by logging and mining companies. The logging roads stay more to the valley bottoms where the big timber was, the much-less-common mining roads head into the high country. One of the finest high country spots I've ever mostly-driven into in my life is south of Lillooet - Molybdenum Lake. If you have a little 4x4 toad, Google Earth is a great tool for finding possibilities like this.