March 8 It is definitely open to the public by Las Posadas Hiker

I go hiking there regularly. No restrictions to entry - I see families walking, people running & mountain biking.

August 23 Los Posadas is open to the public. by TevisRider

While living in Angwin I often ride my horse or run on the fire roads and trails located in Los Posadas State Forest. Park at the trail head at the sharp right turn.

November 30 Not a State Park! Closed to the public. by Gerri Finn

This is not accurate. Do not bother going to Las Posadas, it is not a state park. It is managed by the state but the deed restriction does not allow public access.