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