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