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