A US woman has spent more than $35,000 in the past year trying to find her beloved missing dog.

Thirty-nine-year-old Janet Mihalyfi has hired psychics and private investigators, posted thousands of fliers, installed cameras in the woods and put out dog food at spots where the Rottweiler mix has reportedly been spotted.

The District of Columbia resident lost five-year-old Havoc on November 9, 2013 after she let him and her other dog off their leads during a run in a wooded area.

Just then, a deer bolted by and both dogs gave chase. She has not seen Havoc since.

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