We drove to 4.5km where there was a steep and sandy section with very little traction. The tires on our Forester couldn’t make it, but with beefier tires it would be fine with some careful routefinding around big rocks. We saw lots of trucks at the end of the road, and heard from someone else that they got their Crosstrek (with better tires) to the end. A warning not to underestimate this road, its steep, rocky and loose in some spots despite other areas of easy driving. Adds a lot of distance to a Blanca lake day if you don’t make it very far!

[From Untrammelled Travels] - E300 is still driveable with a stock 4x4 and Elaho/Squamish Valley FSRs were easily driven up to this point. See: https://www.untrammelledtravels.ca/blanca-lake-coast-mountains for more details