Mountain Line (Arizona)

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

Last updated September 14, 2025

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]

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)	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)	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

References

↑ "NAIPTA Mountain Line Celebrates 10 Years in Flagstaff". www.MassTransitMag.com. Retrieved 2019-04-26.

External links

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[1] "NAIPTA Mountain Line Celebrates 10 Years in Flagstaff". www.MassTransitMag.com. Retrieved 2019-04-26.

[1]