KCBS celebrates the 35th Annual Running of the Napa Valley Marathon. Honoring Women in Marathoning. The race takes place along the beautiful Silverado Trail, from Calistoga, south to the finish line at Vintage High School in Napa, Napa Valley, California. It all kicks off with an Expo on Friday, March 1, 1:00pm – 6:00pm; and Saturday, March 2, 9:00am – 5:00pm at the Napa Valley Marriott Hotel and Spa – free to attend! Further registration and spectator information is available at www.napavalleymarathon.org.