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