Members of the public are being urged to make their views known on controversial plans to merge two air ambulance bases.
Proposals have been made to close bases in Caernarfon, Gwynedd, and Welshpool, Powys, and create one base in the centre of north Wales.
A meeting of health leaders heard the plans would improve coverage and response times.
However, the idea has been met with opposition, especially in rural areas.
The Wales Air Ambulance plans include many possible scenarios, with a favoured option of creating a new single base near the A55 in Conwy county or Denbighshire.