What happened
While inbound to the airport, the pilot attempted to contact the Common Traffic Advisory Frequency (CTAF) for an airport advisory but was unable to reach anyone on the frequency. Consequently, the pilot monitored the ATIS from a nearby airport and selected runway 35 for the approach.
Upon entering the traffic pattern, the pilot observed that the windsock indicated an east wind, consistent with the speed information obtained from the ATIS. The pilot configured the Cessna (type not specified in source) for a crosswind landing.
The touchdown on the main wheels and the initial ground roll proceeded without incident until the tailwheel was lowered to the ground. Just after the tailwheel made contact, an unexpected gust of wind from the east pushed the tail to the left. The pilot attempted to regain directional control using both rudder and brake applications but was unsuccessful. This resulted in a ground loop to the right, which caused the collapse of the left main landing gear and structural damage to the left wing.
The aircraft and the pilot were not injured.