Tracy Salcedo has written more than twenty-five guidebooks to destinations in California and Colorado, including Hiking Waterfalls in Northern California , Best Rail Trails Northern California , Hiking Through History San Francisco , and Hiking Lassen Volcanic National Park , which won the National Outdoor Book Award for Outdoor Adventure Guidebooks in 2020. She has compiled Best Easy Day Hikes guides to the San Francisco Bay Area, Reno, Sacramento, Fresno, Boulder, Denver, and Aspen, and is also the author of Historic Yosemite National Park , Historic Denali National Park and Preserve , Search and Rescue Alaska , Walking with Wildfire: Exploring Impacts of the Dixie Fire in Lassen Volcanic National Park , and Death in Mount Rainier National Park . Visit laughingwaterink.com to learn more.