To BillyBob,

Yes you can make it a little ways above the Indian Boat launch. You can also hike down there from the opposite side by taking a faint trail that is found about 1/2 way up that steep road that leads to Carson (trail takes off from one of those pull-off areas on the right as you go up) It is a decent trial and you pop out right across from the Indian boat launch.

Regarding Miss Lonna, it was mentioned in a previous post that she only owns the entrance area and the actual fishing area (and most of the garbage) is on public land.