 Ranger from Hilbert's Outdoor Power, Thief River Falls. Come celebrate Rural Transit Day with Tri-Valley Transportation Programs. On Tuesday, July 16th, all rides in Crookston, Thief River Falls, Warren, Bagley, and Menoman will be free. There's no age or income requirements. Tri-Valley Transportation asks that you please schedule your ride in advance at 1-800-201-3432. That's free rides on Tuesday, July 16th. Call Tri-Valley Transportation, 800-201-3432 in advance to schedule your ride.