BOULDER — Three people died Saturday afternoon in the fiery midair collision of two small planes in the skies north of town, but three others escaped unharmed after the pilot of a glider being towed by one of the aircraft cut loose, maneuvered through a fireball and landed safely.

There were first hand accounts coming across the twitter stream all weekend

@pqboulder Did anyone see a plane or something just go down near the Boulder Rez?

@jeffran Boulder Valley Ranch trails are closed – I’m guessing due to the plane crash yesterday.

@dlehn Eagle trailhead had police tape and big no trespassing signs all over it this morning too which feeds Ranch from east

@boulderosmp Several OSMP trails at Boulder Valley Ranch are closed as a result of the tragic plane crash on Saturday. http://bit.ly/mpaKD

Our heart goes out to those families involved in the accident.

Trails effected are: The Hidden Valley, Degge, Mesa Reservoir, Cobalt, and Eagle (closed from the valley to the west) trails are closed until further notice. The Foothills trailhead is closed. The Boulder Valley Ranch and Sage trails remain open.

It is unclear at this time when the trails might re-open.