Sorry but that land is privately owned. The gate is closed--and you WILL be kicked out of there and arrested for trespassing (if you are in any kind of motorized vehicle). They are
VERY strict about it. They ONLY allow non-powered vehicles into the lake, like a bicycle.
Some complete dumb ass started a forest fire up there many years ago. So their stupidity shut it all down, for the rest of us.
I'm not sure if this is still the case--but the owners used to open the gate (and property),
ONLY during the month of November. For hunters primarily, but we were also allowed to fish in that lake too. It's been a few years since I've been up there, so that permission may have changed since then.
In addition, you need to review the regs for stream fishing. 98% of our streams are closed at this time of the year. What I can suggest, however, is that you hit the creek AT, or BELOW, the gate. Their aren't many, but their are some nice cutties in that stream. You'll just need to wait until next Spring, when the streams are legally open for trout fishing.
@brandon4455 will likely have more deets.