Bright object observed over Healdsburg in Sonoma wine country, California (1958)

Project Blue Book Case #5716. On March 14, 1958, a bright object was observed over Healdsburg, California — a wine country community in northern Sonoma County, approximately 65 miles north of San Francisco. Healdsburg's position in the Russian River valley provided dark agricultural skies north of the Bay Area's urban glow. The case was classified "Unknown."