AUGUSTA, Maine (AP) — People across Maine took part in an effort to clean up more than 100 illegal dump sites on private property as part of the state's fourth annual Landowner Appreciation Day Saturday.

The forestry division of Maine Department of Agriculture, Conservation and Forestry has been working with other state agencies and recreational groups to identify locations that need cleaning up. The state is tracking the cleanup progress using an online database.

The day is designed to thank property owners who allow the use of their land for recreational purposes. Unlike in other states where people often have to pay club fees to use undeveloped forest land, much of Maine's farms and forests lands are free and open to the public. But the state says that leaves them vulnerable to littering or illegal dumps of trash.

Forestry staff supplied trucks and trash bags and volunteers helped to clean up and load the items. The sites could include anything from one piece discarded furniture to several pickup-truck loads of shingles and mattresses, the state said.

"Efforts like this demonstrate that most Maine people understand that public access to private lands is a special privilege to be respected and cherished, not a right," Republican Gov. Paul LePage said in a statement.