The lurcher-type dog, named Bow, was found tied to a tree in Neumann’s Flash country park, in Old Warrington Lane, on Thursday 28 December in Northwich, Cheshire.
She had a broken back leg and bruising to her abdomen, as well as scars on her face and other smaller, older wounds on her body.
The member of the public who found her took her to a local vets, who contacted the RSPCA.
RSPCA inspector Nadine Pengilly said:
Bow was microchipped but enquiries have been made to contact the person whose details are on the chip, with no success.