Gardaí are investigating a single vehicle road traffic collision that occurred on the N59 near Clifden yesterday at approximately 12 noon.
A woman, in her 30s, was air lifted to University Hospital Galway to be treated for serious yet non-life threatening injuries.
The road was closed for a forensic examination of the scene.
It reopened at approximately 6:00pm yesterday evening.
Gardaí are appealing for anyone who was in the Clifden Main Road area between 11:00am and 12:30pm and has information or footage (including dash cam) to contact Clifden Garda Station on 095 22500 or the Garda Confidential Line on 1800 666 111.
Investigations are ongoing.