This is a 25 mile ride with views, all types of terrain and fewer people than on the other local trails. Start at the base of Greene park and head up past Phoenix Lake and around till you end up at... More on trails.mtbr.com
Ascending Rock Springs: 1 Steeper than the average trail in Marin 2 Requires a strong aerobic ability on your bike 3 Trail is lightly used 4 Great Views of MMWD lakes Descending Rock Springs 1 Rock... More on trails.mtbr.com

