lake close or open?

[the local angler]

hey all i have this lake "X" i want to go fish (boat in tow). according to the fishing regs its still open but the main gate entering the lake is all locked up because of the campground is closed for the season. i could park at the gate and walk in but its a hell of a long walk. i could find another way in by vehicle but i am pretty sure CO's would not be too impressed even though there is no posted "no trespassing" signs. the locked gate really surprised me as its never been locked in the past. maybe under new type of management?