Photo provided to the Times Observer One of the clues that’s part of the Warren County Historical Society’s Trail of History will take participants to this location, an exhibit about Warren County’s oil industry. The answer is on the door in the event the location is closed.

The Warren County Historical Society is rolling out its fourth version of the Trail of History Challenge

The family-friendly program will take people to 12 historical sites throughout Warren County based on a series of clues.

“This family-friendly summer fun is for anyone who loves history and mystery,” Program Manager C.J. Chase said, “and your deductive reasoning skills just might win you a prize.”

All participants receive a cup, compass, pencil and the packet of clues with riddles that will lead participants to the locations.

“The winner of the prize pack will be drawn from correct answer sheets returned by September 6 at 4 p.m.,” Chase said.

Clue packages are $10 and can be picked up at the Warren County Historical Society office on Fourth Ave. between 8:30 a.m. and 4:30 p.m. Monday through Friday.