I have been doing a little more research and believe I have located a map showing the trail. I'm hoping to receive a single page copy of it shortly. By piecing together what I was able to zerox the old map is titled "Trail Map "The Desert Riders" but is not dated that I can find. The Gordon trail did start inside the Andreas Canyon Club private property area (21 flat roofed homes without electricity owned by a club under a corporate chater) and follows the prominent ridgeline up to "Tahquitz Valley".
The map also shows a trail called the Idyllwild Trail which starts out off the "Skyline Trail" above and south of the golf course (looks like what is now known as the Lykken Trail) and proceeds upward joining with the Gordon Trail below "Tahquitz Valley".
In an attempt to date the map present day I-10 is listed as State Hwy 99. There is a discussion of the "new" Idyllwild Trail being almost complete and that when done it will take the place of the old Gordon Trail.
Once I have a single page copy I'll figure out a way to get it posted.
