SAN FRANCISCO (July 9, 2007) - A U.S. Coast Guard 25-foot response boat, from Station Rio Vista, patrols McCovey Cove during the Homerun Derby here on Monday. Various Coast Guard assets were deployed throughout the day to monitor and enforce security zones throughout the area as well as ensure the safety of the boating public in the cove. (Coast Guard photo by Petty Officer Jonathan R. Cilley)
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