The charity were called at around 2:30pm on Monday (15th February), after a member of the public found the dog on Edington Road in Steeple Ashton.
The tan and white female was discovered in a plastic animal carrier and there are fears that she may have been alive when dumped.
It’s hoped the public may have some information and be able to help with the RSPCA’s investigation.
RSPCA inspector Steph Daly said:
“It’s not clear when she was dumped in the area or how long she may have been dead but we’d be keen to hear from anyone who may recognise her or know where she has come from.
We fear she may have been alive when she was dumped as the pet carrier had faeces inside it when she was found, suggesting she sadly died while trapped in the carrier.
It’s difficult to say exactly what breed of dog she is, although the vet believes she was a Jack Russell cross, and it is thought she is around six weeks old.
It’s shocking to think she was simply discarded like rubbish and left to die at the roadside. Anyone with information should contact our appeal line on 0300 123 8018.”