MOUNTAIN LINE DETOURS AND TEMP STOPS FOR BUTLER AND LONE TREE CONSTRUCTION

Map showing bus route changes and temporary stops for routes 3, 4, 14, and 16 due to Lone Tree/Butler construction in Flagstaff, with a color-coded legend and street labels.

FLAGSTAFF, AZ (February 27, 2026) – Beginning March 2, 2026, Mountain Line’s Routes 4 and 14 will operate on a detour for the construction at Butler and Lone Tree, and several stop closures are in place:

Route 4, Stop 16 (Lone Tree/Franklin northbound): Temporary stop available on the south side of Sawmill Rd., in front of Liz Archuleta County Park.
Route 14, Stop 4 (Lone Tree/Franklin southbound): Temporary stops available on the north side of Sawmill Rd., east of Windsor Ln. near The Grove covered parking, and south on Lone Tree, just north of O’Leary.
Routes 3, 4, 7 westbound stops at Butler Sawmill (Greyhound): Temporary stop available to the east on Butler Ave., just east of Sawmill Rd.
Routes 3, 7, 14 eastbound stops at Butler/Elden: This stop is closed. Route 14 riders are advised to use the existing stop at Butler and San Francisco or the temporary stop on the north side of Sawmill Rd., just east of Windsor Ln. near The Grove covered parking. Routes 3 and 7 riders are advised to use the existing stop at Butler/San Francisco or Butler/Cambridge (Whole Foods).
Routes 3, 4, 7 westbound stops at Butler/Elden: Temporary stop available to the west on Buter Ave., at O’Leary St.

Construction on this phase of the Butler and Lone Tree project is anticipated to last through November 2026. Click here for a map of the full construction area, including all detours, stop closures, and temporary stops.