From the Rocky Mountain House RCMP:

The RCMP are investigating a two vehicle collision which occurred Friday morning, and resulted in the death of one adult female.

At 6:32 RCMP responded to a 911 call on Highway 11 west of Rocky Mountain House, approximately half way to Nordegg.

Preliminary investigation indicates that a pick up truck travelling eastbound collided with a semi tractor trailer travelling westbound.

A 42-year-old female, the driver and lone occupant of the pick up truck, was declared deceased.  The semi driver was not injured.

Traffic was limited to one lane of travel for several hours, but the highway is open for travel now.

A collision analyst attended the collision to conduct a scene examination. The cause of the collision remains under investigation.