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