UNINCORPORATED ADAMS COUNTY -- Adams County authorities have returned to a pond where a decomposing human head was found over the weekend.

Investigators are looking for the corpse that goes with the head. They don't know if it is in the pond, but they are working on the assumption that it might be.

The pond, at 64th and Pecos, was being searched Wednesday by a dog trained to smell human remains, called a "cadaver dog." The dog indicated at least one "hit" while on the water, 7NEWS reported.

A dive team will be used to search the bottom of the pond where the dog indicated the possible presence of remains.

Authorities said that they were hoping someone might come forward to identify the victim, who was Hispanic.

"He had brown hair and a goatee and he's missing the third molar on the lower right side," said Sgt. Craig Coleman, Adams Sheriff's Department spokesman.

Storm water drains into the pond from miles away. Because the head was decomposing, investigators couldn't determine the race or sex until the autopsy.

Coleman said that railroad tracks go through the area and the head could have been severed in a train accident. But nothing from the coroner's report indicates how the head was severed, and the matter is still being treated as a homicide, he said.