S o p h ia. F ra n c is c o. D r. State Recreation Area. There is no trail access or alternate route within Folsom Lake State Recreation Area. . Trail Map. The Posted Order with map of the closure area can be found here. Main Body. Success at our Poker Ride! Thank you to everyone who attended. Folsom Lake. If you took any photos please post them in the comments. P a rk w a y. Green Valley Rd. Folsom Lake Crossing. folsom lake trails map. East Natoma St.