Seems somewhat strange that the city of Pleasanton has brought down their website pleasantontrails.com and at least when I try to access it, it says it can't find it with "This site can't be reached." I went to the Internet Archive --- there is a redirect to the Internet Archive to
City of Pleasanton, CA - Pleasanton Trails Master Plan with a trails map that also no longer appears on the City of Pleasanton's website that I can find.
The trails map
https://www.cityofpleasantonca.gov/documents/Trail Maps/Future Trail System Detail Map.pdf that used to be on there has a blue dotted trail going from what looks through the Blessing Dr dead end in the Preserve, traverses the private property (light gray area) on the other side of the gate, and then seems to enter the north end of Pleasanton Ridge park. You have to zoom into to see this blue dotted trail.
In the northwest corner, the city map shows a whole array of trails at the north end of Pleasanton Ridge Regional park around where Philip's body was found (darker gray area), but when I look at Google aerial view and look at the helicopter footage, I only see the end point of the North Ridge trail and what looks to be a couple of little trails.
I am not sure why the city of Pleasanton drew all of these trails at the north end of Pleasanton Ridge park. They may actually exist but perhaps they are invisible from the Google aerials. Maybe they are all under a tree canopy and they just don't appear from the Google satellite view. Or maybe they depict the 'game trails' possibly? Or is the city of Pleasanton depicting this network of trails in the northern end of Pleasanton Ridge park as an official pre-existing set of trails? I have no idea. But the legend on the map says
solid lines are "existing improved surface trails" so if I was looking at this map the city put on their website, I would assume the northern part of Pleasanton Ridge Regional park has a lot of existing improved surface trails already there, not 'game trails.'
I wonder if Pleasanton told the law enforcement SAR about this map. It seems if they had, perhaps the law enforcement SAR would have searched the north end of Pleasanton Ridge more thoroughly. I find it a bit odd that this map no longer has a link that I can find that brings this trail map up on the current city of Pleasanton website. I also find it odd that the city is wanting to build a trail from the Moller Ranch/The Preserve trails through private property (the gray box that is the lighter gray that has the blue dotted trail go through it) to access the northern end of Pleasanton Ridge park (the darker gray portion to the left of the private property).
I wonder if the city of Pleasanton told the Alameda County sheriff in charge of the official SAR or the volunteer searchers about this map that used to be on the city's internet trails site?