Rescuers spent Tuesday night carrying a Portland woman down Tumbledown Mountain in Byron after she broke her leg while rock climbing.

The Maine Warden Service was called at 8 p.m. after Maris Toland, 28, had fallen and suffered a compound fracture of her leg.

“In an exhaustive effort in very difficult terrain, Toland was carried down the mountain throughout the night and flown by LifeFlight to Maine Medical Center in Portland this morning,” according to a statement from Cpl. John MacDonald of the warden service.

Helping bring Toland to safety were members of Mahoosuc Search and Rescue, Mount Blue State Park, and fire departments from Mexico, Roxbury, Weld, Rumford, Peru and Dixfield, as well as 31 volunteers.