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ARVADA, Colo. — Keep your eyes peeled for hidden treasure the next time you’re in Arvada.

There are dozens of hand-painted rocks hiding all over the city waiting to be found.

“We were really looking for an idea that would bring the community together and get us all talking and get us doing something fun and we came up with this cop rock idea,” Arvada police spokeswoman Jill McGranahan said.

“Cop Rocks” is a program where law enforcement-themed images are painted on rocks. Volunteers then hide them in parks and open spaces around Arvada for anyone to find.

“You’re not going to have to go digging for them,” McGranahan said.

While it’s meant to be a fun way for the community to engage, the scavenger hunt also has a serious purpose.

“We know that neighbors who know each other, that talk and have that relationship, you see lower crime rates in those neighborhoods,” McGranahan said.

“So we are always looking for ways to get our community out and talking and getting to know one another.”

If you find one, you are encouraged to take a photo with it and share it on social media with police. The rocks can be kept or hidden again for someone else to find.

One featuring a black heart with a thin blue line through it can be brought to the police department for a prize.