Project Blue Book Case #11239. On December 25, 1966, witnesses in Monroe, Oregon — a tiny Willamette Valley community south of Corvallis — observed a bright object in the sky on Christmas Day. The holiday timing meant many residents were outdoors visiting family and neighbors, providing an unusual number of potential witnesses.
Monroe sits in the agricultural heart of the Willamette Valley, surrounded by grass seed farms and vineyards. The valley's flat terrain between the Cascade Range and the Coast Range provided excellent sky-watching conditions. Oregon continued its long association with the UFO phenomenon throughout the 1960s.
The case was classified "Unknown."