The helicopter crashed after it struck a recreational slackline suspended in Telegraph Canyon on Jan. 2, killing all four ...

Investigators say a helicopter hit a highline stretched across Telegraph Canyon near Superior, killing four. Here’s what to know.

Federal investigators are examining if a slackline was properly authorized following the deadly helicopter crash near Superior that claimed the lives of four people on Friday, ...

This article originally published at Helicopter crashes into kilometer-long slackline in Arizona, killing four.

A sightseeing helicopter carrying four family members crashed in the mountains of central Arizona after apparently striking a ...

A helicopter collided with a slackline over a canyon in Arizona and crashed, leaving four passengers dead over the holiday weekend. Now, a family member has released their identities. The East ...

Add Yahoo as a preferred source to see more of our stories on Google. A fatal helicopter crash southeast of Phoenix involved a slackline, also known as a highline, which investigators say the aircraft ...