The trail is single track, intermediate level, and ends ar the entrance road to Browns Ravine marina. There are some side trails you can take but should be no problem following the main trail. This is a very well used multi use trail (hikers, runners, bikers, possibly horses), so be carefully on blind turns and respect each other. Can be hot during the summer, so bring water. Also right along Folsom lake so you can always take a dip to cool off.
Trail starts at the intersection of Green Valley Road & Sophia Parkway in El Dorado Hills. Park on the side Sophia Parkway (usually there are a number of cars there). Cross Green Valley road and up the gravel road. You'll go through the right side of a yellow gate then continue up the hill. Single track trail begins on the right sude about 2/3 up the hill before you reach the top if the gravel road.
http://www.singletracks.com/item.php?c=1&i=6862