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Round Valley Regional Preserve Professional Review and Guide
"Round Valley’s single trailhead is on a lonely country road that winds through the eastern foothills of Mount Diablo. Hikers can take long out-and-back or shuttle hikes through this preserve and neighboring Los Vaqueros Watershed, but this is the sole official loop at Round Valley, a three-creek, 4.1-mile tour through rolling hills of oak woods and grassland."
--Jane Huber, 60 Hikes within 60 Miles: San Francisco (Menasha Ridge Press).
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