A glider crashed in Gold Hill Thursday afternoon, causing back injuries to the pilot and more minor injuries to a passenger.

The glider landed in the yard of a house in the 11600 block of Gold Hill Road around 12:55 p.m.

The Boulder County Sheriff's Office said the preliminary investigation indicates that the glider lost altitude due to a downdraft and the pilot looked for a place to land safely. The pilot was banking in an attempt to land in a field when one of the wings struck a power line, and the glider crashed.

Members of the Gold Hill, Lefthand, Sunshine and Fourmile fire protection districts, as well as American Medical Response Ambulance Service, and the Four Mile Fire Department responded to the crash.

Both the pilot and the passenger were transported to Boulder Community Hospital by ambulance. The passenger was treated for minor injuries and released. The pilot was treated for possible back injuries. His condition was not available.

The Boulder County Sheriff's Office did not release the men's names.

The Federal Aviation Administration and the National Transportation Safety Board will conduct an investigation into the crash.