One person is in critical condition after a helicopter crash in a remote area of Wasatch County Sunday afternoon.

The people who strung the line - which is used in a sport akin to tightrope walking - had filed an aviation safety notice, raising questions about the air alert system.

The helicopter had four people on board, according to the FAA.

Preliminary evidence indicated a slackline of more than 1 kilometer in length was strung recreationally across a canyon.

Timber Lakes, WASATCH COUNTY — A helicopter crash near Timber Lakes, Wasatch County, has left one person critically injured, prompting an ongoing investigation into the incident. This unfortunate ...

A helicopter crash in Superior claimed four lives and raised concerns about FAA notification systems despite a NOTAM being issued for a highline the helicopter may have collided with.

A private helicopter with four people on board crashed in mountains near Phoenix on Friday, authorities said. Crews are working to access the remote crash site, located in the mountains near Telegraph ...