Warren Richardson Trail commemorates Warren P. Richardson, a prominent cattle rancher and hop
grower who organized the Sonoma County Trail Blazers and served as president of the California
Horsemen's Association.
Lake llsanjo was named for the property's former owners, Ilsa and Joe Coney.
Cobblestone Trail leads through an area that was extensively quarried in the early 1900s for cobblestone.   At one time there was a gravity-powered, narrow-gauge tramway there that took
cobblestone down to the main railroad line, the stone was then shipped to San Francisco.   More evidence of quarrying can be seen along Orchard, North Burma, Warren Richardson, Marsh, Two
Quarry, and Lawndale Trails. 
Spring Creek Trail is one of the most pleasant trails in the park on a hot summer day.   None of the creeks within the park flow all year long, but even in the driest times, pools of water remain in the otherwise dry bed of Spring Creek.
Marsh Trail climbs steadily from its beginning at the intersection of Canyon Trail, It then skirts the flank of Bennett Mountain.   Some wonderful panoramic views of Lake llsanjo & the surrounding
mountains can be seen.   The trail runs through prime oak woodland, bunchgrass, Oregon oaks, and some cool islands of redwood.
South Burma Trail goes through a mixture of Douglas-firs and oaks as it leaves Warren Richardson Trail.   As it climbs, you'll notice that the plants become more shrubby.   Just before dropping down to Buick Meadow the trail passes through an acre or so that is blanketed with the delightfully pungent
Sonoma sage, which blooms in May and June.
Schultz Trail provides an opportunity to see how plant communities vary according to their exposure to the sun. Schultz Canyon runs east and west; its north side (which faces south) is mostly dry chaparral since it receives far more sunshine than the opposite, north-facing slope which is covered with Douglas-fir. The upper stretches of the trail, which are drier, have oaks and manzanita.