Great stuff! Thank you! (only 39 years ago...how badly overgrown could it be? ha ha)
I really want to try this now. Better get back in shape...
The route on the north-east side of Deeks is horribly overgrown, and I highly doubt a trail ever existed. Sunday, we tried and failed heading up and offer a few pieces of advice to those who are going to try navigating this area.
1. This area has been logged at least twice since that "trail" existed. This has resulted in a complete change of the area and horrible terrain. A mix of steep ravines, cliff bands, logging debris, and trees spaced a foot away from each other is the norm.
2. Stay north west from all of the creeks coming down from Deeks Peak. These appear small on the map, but in reality are extremely steep, and completely rocky.
3. Don't follow what appears to be hiker's flagging tape, this is all logging tape and leads you no where.
4. Mick Range scaled this area in the 90's and said it was the same. No Fun.
5. We also looked for the trail up the west side of Capilano to Gordon Lake. Couldn't find anything and this is the exact same logging mess with brambles in between. Follow the logging roads up if you are going to try going up this route and don't take shortcuts.
While I highly believe we would have eventually succeeded if we had came down from Deeks Peak, I don't think it's safe at all and a trail will probably not work in this area. The entire valley has sharp cliffs that are extremely hard to navigate.