White Sheepdog

We found this lovely white sheepdog at the side of the road by Caragh Lake last week. Between Glenbeigh and Glencar, near the head of the lake. He is so good natured and playful. Loves hopping into the jeep and going for drives. Waits patiently by the gate for us to return. He had no collar so may have been dumped off or could have broken away. Could the owner be someone not on social media? Does anyone recognise this dog? He has a distinctive patch over his left eye.