The Scottish Fire and Rescue Service was alerted just after 4pm on Sunday, 2 October to reports of the trapped animal in the Lower Milovaig area on the Isle of Skye.
On-call firefighters from Dunvegan Community Fire Station were mobilised to the scene where the horse named O’Malley, a 35-year-old Irish Cob, had its hind leg stuck in the tank.
Crews worked with neighbours as well as a local vet and were able to free O’Malley using a neighbour’s digger and canvas strops wrapped under the horse.
Station Commander Karla Stevenson said: “Incidents like this demonstrate the variety of emergencies our skilled and dedicated on call firefighters can be called to attend. It also highlights the valuable contribution they make to our communities across the country.
“I would like to thank our crews for their professionalism to bring the incident to a safe and swift conclusion. We are glad to see O’Malley happy and back in his field.”