Mountain Line (Arizona)

The Mountain Line provides fixed route public transportation bus service in the Flagstaff area of Coconino County, Arizona. It started in 2001 as NAIPTA, replacing the county-run Pine Country Transit.^[1]

Mountain Line

Parent	Northern Arizona Intergovernmental Public Transportation Authority
Founded	2001
Headquarters	3773 N. Kaspar Dr.
Locale	Flagstaff, AZ
Service area	Transit
Service type	bus service
Routes	9
Hubs	Downtown Transfer Center and Flagstaff Mall
Fuel type	Hybrid diesel and electric
Website	mountainline.az.gov

Routes

There are nine routes currently in service (2, 3, 4, 5, 7, 8, 10, 14 and 66). Every route currently in service interchanges at the Downtown Connection Center, located on W. Phoenix Ave at S. Mikes Pike. Additionally, three routes (2, 3, and 66) interchange at the Flagstaff Mall Connection Center, located behind the mall at Marketplace Dr./Mall Way.

Routes currently in service:

• Route 2 (Blue Line) – Downtown to Flagstaff Mall via Flagstaff Medical Center, Cedar/Lockett
• Route 3 (Green Line) – Downtown to Flagstaff Mall via Butler/Soliere/Country Club
• Route 4 (Gold Line) – Downtown to Milton/Beulah/Lake Mary Rd/Lone Tree (CCC) - (Runs circle counterclockwise to Rt 14)
• Route 5 (Orange Line) – Downtown to Cheshire via Flagstaff Medical Center
• Route 7 (Purple Line) – Downtown to Sunnyside via Butler/Huntington/Fourth Street
• Route 8 (Teal Line) – Downtown to Woodlands Village via historic Rt 66
• Route 10 (Maroon Line) – Downtown Connection Center to Woodlands Village via Northern Arizona University
• Route 14 (Brown Line) – Downtown to Lone Tree (CCC)/Lake Mary Rd/Beulah/Milton - (Runs circle counterclockwise to Rt 4)
• Route 66 (Red Line) – Downtown to Flagstaff Mall via Rt 66/Christmas Tree Estates

Bus Fleet

Current roster

Fleet number(s)	Thumbnail	Year	Manufacturer	Model	Engine	Transmission	Notes
600-624		2010	Gillig	Low Floor 40' (G30B102N4)	Cummins ISL9	Allison B500R
625-649		2011	Gillig	Low Floor 35' (G30B102N4)	Cummins ISL9	Allison B400R
650-699		2011	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins ISB6.7	BAE Systems HybriDrive hybrid system
700-724		2011	Gillig	Low Floor 40' (G30B102N4)	Cummins ISL9	Allison B500R
725-736		2012	Gillig	Low Floor HEV 40' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
737-743		2015	ElDorado National	E-Z Rider II BRT 32'	Cummins ISB6.7	Voith D854.5
744-750		2019	ElDorado National	E-Z Rider II BRT 32'	Cummins B6.7	Voith D854.6
751-757		2023	ElDorado National	E-Z Rider II BRT HEV 32'	Cummins L9	Allison eGen Flex H 40 hybrid system
758-764		2024	Freightliner Trucks	Freightliner M2 32'	Cummins B6.7 eGen Flex	Allison 2200 PTS
765-799		2025	Freightliner Trucks	Freightliner M2 HEV 35'	Cummins L9	Allison eGen Flex H 40 hybrid system
800-832		2008	NFI	D40LF	Cummins ISM	Allison B400R
833-837		2008	NFI	DE40LF	Cummins ISL	Allison EP40 hybrid system
838-867		2009	NFI	D40LF	Cummins ISM	Allison B400R
868-870		2009	NFI	DE40LF	Cummins ISL	Allison EP40 hybrid system
900-919		2009	NFI	D60LF	Cummins ISM	Allison B500R
920-949		2010	NFI	DE40LF	Cummins ISL9	Allison H 40 EP hybrid system
1000-1019		2011	NFI	DE35LF	Cummins ISL9	Allison H 40 EP hybrid system
1020-1039		2011	NFI	DE30LF	Cummins ISL9	Allison H 40 EP hybrid system
1100-1124		2011	NFI	D30LFK	Cummins ISB6.7	Allison B300R
1125-1129		2011	Gillig	Low Floor HEV 40' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
1130-1161		2011	NFI	XDE40	Cummins ISL9	Allison H 40 EP hybrid system
1162-1197		2011	NFI	DE40LFR	Cummins ISL9	Allison H 40 EP hybrid system
1198-1232		2012	NFI	D30LF	Cummins ISL9	Allison B400R
1233-1237		2012	NFI	DE30LF	Cummins ISL9	Allison H 40 EP hybrid system
1300-1355		2012-2013	NFI	XDE40	Cummins ISL9	Allison H 40 EP hybrid system
1400-1429		2013	NFI	DE30LFK	Cummins ISL9	Allison H 40 EP hybrid system
1430-1458		2014	Gillig	BRT HEV 29' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
1459-1473		2014	NFI	DE30LF	Cummins ISL9	Allison H 40 EP hybrid system
1474-1499		2014	Freightliner Trucks	Freightliner M2 HEV 32'	Cummins ISL9	Allison H 40 EP hybrid system
1500-1509		2006	NABI	40 LFW CNG	Cummins Westport C Gas Plus	Allison B400R
1510-1529		2015	Gillig	BRT HEV 29' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
1530-1559		2016	Gillig	BRT HEV 29' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
1600-1629		2017	Gillig	BRT HEV 29' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
1700-1724		2017	Gillig	BRT HEV 40' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
1725-1749		2017	Gillig	BRT HEV 60' (G30B102N4)	Cummins L9	BAE Systems HDS 300 hybrid system
1801-1806		2011	Gillig	Low Floor 40' (G30B102N4)	Cummins ISL9	Allison B400R
1811-1816		2011	Gillig	Low Floor 35' (G30B102N4)	Cummins ISL9	Allison B400R
2700-2724		2017	Gillig	Low Floor Plus HEV 40' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
2725-2736		2017	Gillig	Low Floor HEV 40' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
3700-3724		2017	Freightliner Trucks	Black 5 HEV 60' (G30B102N4)	Cummins L9	BAE Systems HDS 300 hybrid system
4700-4724		2017	Gillig	Low Floor HEV 60' (G30B102N4)	Cummins L9	BAE Systems HDS 300 hybrid system
4800-4824		2017	Freightliner Trucks	Freightliner M2 32'	Cummins ISB6.7	Allison 2200 PTS
4900-4924		2018	Freightliner Trucks	Freightliner M2 32'	Cummins B6.7	Allison 2200 PTS
5013-5049		2023	NFI	XDE35	Cummins B6.7	BAE Systems HDS 200 hybrid system
5050-5099		2023	NFI	XDE40	Cummins L9	BAE Systems HDS 200 hybrid system
5100-5149		2010	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
5150-5199		2011	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
5200-5275		2012	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
5276-5349		2012-2013	NFI	XDE40	Cummins ISL9	Allison H 40 EP hybrid system
5350-5352		2023	NFI	XE35	Siemens electric drive system
5353-5355		2022	Gillig	Low Floor Plus EV 35' (G28B102N4)	Cummins Battery Electric System
5356-5360		2017	NFI	XDE60	Cummins L9	BAE Systems HDS 300 hybrid system	Only used on the 10 Mountain Link route.
5361-5362		2017	Gillig	BRT HEV 35' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
5363-5364		2016	Gillig	BRT HEV 35' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
5365		2014	NFI	XDE60	Cummins ISL9	Allison H 50 EP hybrid system	Only used on the 10 Mountain Link route.
5366-5367		2015	Gillig	BRT HEV 35' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
5368-5373		2014	Gillig	BRT HEV 35' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
5376		2013	Gillig	BRT HEV 35' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system
5377-5383		2011	Gillig	BRT HEV 35' (G30B102N4)	Cummins ISL9	Allison H 40 EP hybrid system	5377-5382 carries Mountain Link branding.
5384		2009	Gillig	BRT HEV 35' (G30B102N4)	Cummins ISL	Allison EP40 hybrid system
5400-5405		2019	Gillig	BRT HEV 35' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
5406-5415		2021	Gillig	BRT HEV 35' (G30B102N4)	Cummins L9	Allison H 40 EPTM hybrid system
5500-5505		2022	Gillig	BRT 29' (G30B102N4)	Cummins L9	Voith D864.6
5506-5515		2023	Gillig	BRT 29' (G30B102N4)	Cummins L9	Voith D867.8 NXT
5515-5599		2024	Gillig	BRT HEV 35' (G30B102N4)	Cummins L9	Allison eGen Flex H 40 hybrid system
5600-5699		2017	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
5700-5799		2018	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
5800-5899		2019	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
5900-5999		2020	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins L9	Allison H 40 EP hybrid system
6000-6099		2021	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins L9	Allison H 40 EPTM hybrid system
6100-6149		2022	Gillig	Low Floor 29' (G30B102N4)	Cummins L9	Voith D864.6
6150-6199		2023	Gillig	Low Floor 29' (G30B102N4)	Cummins L9	Voith D867.8 NXT
6200-6215		2024	Gillig	Low Floor HEV 35' (G30B102N4)	Cummins L9	Allison eGen Flex H 40 hybrid system
6216-6349		2023	Freightliner Trucks	Freightliner M2 32'	Cummins B6.7 eGen Flex	Allison 2200 PTS
6350-6449		2022	Nova	Nova LFS' (G30B102N4)	Cummins L9	ZF Ecolife-2 6AP1420B
6450-6649		2023	Nova	Nova LFS' (G30B102N4)	Cummins L9	ZF Ecolife-2 6AP1420B
6650-6949		2024-2025	Nova	Nova LFS' (G30B102N4)	Cummins L9	ZF Ecolife-2 6AP1420B

Retired Roster

Fleet number(s)	Thumbnail	Year	Manufacturer	Model	Engine	Transmission	Notes
5374-5375		2012	Gillig	BRT 35' (G27B102N4)	Cummins ISL9		Sold to Metropolitan Evansville Transit System in 11/2017.
5385-5386		2007	Gillig	BRT HEV 35' (G30B102N4)	Cummins ISL
5387		2003	ElDorado National	E-Z Rider II 35'	Cummins ISC	Allison B400R	2002 model.
5388-5389		2004	ElDorado National	E-Z Rider II 30'	Cummins ISB	Allison B300R
5390-5391		2003	ElDorado National	E-Z Rider II 30'	Cummins ISB	Allison B300R
5392-5393		2002	ElDorado National	E-Z Rider 30'	Cummins ISB	Allison	One unit with Lic. Plate G-960ES has VIN – 1N9LLAC602C084218
5394-5399		2001	ElDorado National	E-Z Rider 30'	Cummins ISB	Allison	Unit with Lic. Plate G-966ES has VIN – 1N9LLAC641C084317 Unit with Lic. Plate G-971ES has VIN – 1N9LLAC661C084318