You can try this link. Use the cursor to move the map around. It is working for me.
https://caltopo.com/map.html#ll=34.3546,-117.17386&z=16&b=t&o=f16a%2Cr&n=1,0.25&a=sma
It should start showing the area around the Bowen Ranch. I think the white zones are private property, the red is BLM and the green is USFS. Move the map a little ways south east from the Bowen Ranch and you will see " water tank " then a bit further " spring ". Past that is an elevation for a mountain top 4463. Just south of that you will see the east/west line for the USFS, green zone is forest lands. Right there just south of that elevation marker you see an intersection of roads, with a little dead end going out to a point. That is the Freedom Trail parking area at the intersection of the roads. This should give you a good idea of where the various boundaries are.
PS, I just tried the link and it shows the Freedom Trail parking area, elevation marker spot right off. The link I have in my favorites starts at the Bowen Ranch but when I saved the link to put here I had the map at the Freedom Trail area.
Edited 1 time(s). Last edit at 04/10/2019 09:12PM by Wizard.