I saw this memorial today while driving by and knew it need a cache. You are looking for a small lock & lock container. And you will need a pen to sign the log.
When Ohio Valley residents awoke on Monday, April 28, 1924, they were greeted with the grim news that an explosion at the Benwood Mine had trapped more than 100 miners underground.
The mine, located at the Wheeling Steel and Iron Corp.'s plant at Benwood, blew up at approximately 7:05 a.m. that day, about 25 minutes after the last truckload of miners had gone underground to work.
Search and rescue operations began at the main entrance, located at the site of the steel mill, and at an air shaft two miles out Brown's Run.
By the time the rescue operations were largely complete a week later, it was known that at least 111 men had been killed in the explosion- some by the blast itself but more by what was known as the "afterdamp" caused by the explosions that ripped through the mine.
https://www.ohiocountylibrary.org/history/wheeling-steels-benwood-mine-disaster/5178