[Samsquanch]

In the upper right hand corner of the map you'll see a drop down menu. Select "CalTopo" and it will pull up topographical maps of the area you're looking. These maps will have trails marked on them. As for camping and fishing, it may list some camping but that will either require some further research (such as the pay site alltrails.com) or local hiking clubs or guide books. Personally, I use a local hiking forum for trip reports and advice - nwhikers.net. Just like the Asylum, I'm sure there are local forums with a wealth of information.