CHARLESTON, W.Va. — Volunteers picked up more than 590,000 pounds of litter from the state’s public roads, highways and streams this past spring.

The West Virginia Department of Environmental Protection announced the numbers on Friday; the work was part of the state’s Adopt-A-Highway program and the DEP’s Make It Shine program.

More than 9,500 volunteers took part in the cleanups, which were held in April.