Gabe Fein, left, of Manchester, Thomas Marshall of Farmington, Nolan Rogers of Wilton and Steve Walbridge of Auburn build a bridge on the new “Signature” mountain bike trail at Mt. Apatite in Auburn on Wednesday. The bridge is the final section of trail that was needed for the 1.4-mile trail to be completed and ready to ride. The project began with 30 volunteers clearing the corridor earlier this summer and finished with the bridge. “Signature” opened with a gathering of trail builders and riders Wednesday evening. The completed trail is only one-half of the project planned for Mt. Apatite, said Chris Riley, president of the Central Maine chapter of the New England Mountain Bike Association. (Daryn Slover/Sun Journal)

Thomas Marshall of Farmington helps move a large rock into place at the entrance/exit of the new bridge on the “Signature” trail at Mt. Apatite in Auburn on Wednesday. (Daryn Slover/Sun Journal)

Nolan Rogers, left, of Wilton and Thomas Marshall of Farmington carry a large rock while helping build a bridge on the new “Signature” mountain bike trail at Mt. Apatite in Auburn on Wednesday. The bridge is the final section of trail needed for the 1.4-mile trail to be completed and ready to ride. The project began with 30 volunteers clearing the corridor earlier this summer and finished with the bridge. “Signature” opened with a gathering of trail builders and riders Wednesday evening. The completed trail is only one-half of the project planned for Mt. Apatite, said Chris Riley, president of the Central Maine chapter of the New England Mountain Bike Association. Gabe Fein of Manchester works on drainage in the background. (Daryn Slover/Sun Journal)

This bridge is one of two built over two days on the “Signature” trail at Mt. Apatite. Lumber was carried by volunteers and members of the summer trail crew and built on location in the pouring rain. (Daryn Slover/Sun Journal)

Chris Riley, president of the Central Maine chapter of the New England Mountain Bike Association, Steve Walbridge, background, of Auburn and Riley’s lab, Casco, put the finishing touches on the new bridge. (Daryn Slover/Sun Journal)