Opponents of a proposed natural gas pipeline through the western part of the state are gathering in Boston.
The protesters have been making their way across Massachusetts in recent weeks.
Wednesday's rally is scheduled to begin on Boston Common and will include landowners, state legislators, and leaders of environmental and conservation groups expected to speak. The opponents say they'll then march to the State House.
Kathryn Eiseman heads the Massachusetts PipeLine Awareness Network, one of the groups coordinating the "rolling rally" across the state. She said a group of about five representatives hopes to meet with Gov. Deval Patrick later in the afternoon.
Energy company Kinder Morgan has proposed the $3.75 billion extension of its northeast pipeline and says will provide clean-burning natural gas to the northeast.