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| Info | 
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| Locale | MRC du Haut-Saint-Laurent, Quebec | 
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| Transit type | Commuter | 
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| Number of lines | 1 | 
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| Daily ridership | 313 772 (2012) | 
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| Headquarters | 10 Rue King #400 Huntingdon, Québec, Canada
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| Operation | 
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| Began operation | December 1984 | 
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| Operator(s) | Autobus Dufresne | 
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Conseil Intermunicipal de Transport du Haut-Saint-Laurent (CITHSL) provides public transportation services for the towns of Godmanchester, Howick, Huntingdon, Mercier, Ormstown, Sainte-Martine, and Très-Saint-Sacrement.
Fare Structure
2015 Fare Structure
| Ticket Type | Validity Period | Fare Zone | Fare Zone | 
| Huntingdon/Godmanchester | Ormstown | Howick/Très Saint-Sacrament | Ste-Martine | Mercier/Chateauguay | Angrignon/Centre-Ville | 
| Payment on Board (Cash) | 1 trip | Huntingdon/Godmanchester | 5.25 $ | 5.75 $ | 6.75 $ | 7.75 $ | 9.75 $ | 13.50 $ | 
| 4.25 $ | 4.50 $ | 5.25 $ | 6.00 $ | 7.50 $ | 10.25 $ | 
| 2.75 $ | 3.00 $ | 3.50 $ | 4.00 $ | 5.00 $ | 7.00 $ | 
| Ormstown | N/A | 5.25 $ | 5.75 $ | 6.75 $ | 7.75 $ | 12.00 $ | 
| 4.25 $ | 4.50 $ | 5.25 $ | 6.00 $ | 9.25 $ | 
| 2.75 $ | 3.00 $ | 3.50 $ | 4.00 $ | 6.25 $ | 
| Howick | N/A | N/A | 5.25 $ | 5.75 $ | 6.75 $ | 10.00 $ | 
| 4.25 $ | 4.50 $ | 5.25 $ | 7.75 $ | 
| 2.75 $ | 3.00 $ | 3.50 $ | 5.25 $ | 
| Ste-Martine | N/A | N/A | N/A | 5.25 $ | 5.75 $ | 7.75 $ | 
| 4.25 $ | 4.50 $ | 6.00 $ | 
| 2.75 $ | 3.00 $ | 4.25 $ | 
| Mercier/Chateauguay | N/A | N/A | N/A | N/A | 5.25 $ | 7.00 $ | 
| 4.25 $ | 5.50 $ | 
| 2.75 $ | 3.75 $ | 
| 20 Tickets | 1 trip each | Huntingdon/Godmanchester | 67.00 $ | 73.50 $ | 94.50 $ | 105.50 $ | 152.25 $ | 219.25 $ | 
| 50.25 $ | 55.00 $ | 71.00 $ | 79.25 $ | 114.25 $ | 164.50 $ | 
| 33.50 $ | 36.75 $ | 47.25 $ | 52.75 $ | 76.25 $ | 109.75 $ | 
| Ormstown | N/A | 67.00 $ | 73.50 $ | 94.50 $ | 105.50 $ | 194.25 $ | 
| 50.25 $ | 55.00 $ | 71.00 $ | 79.25 $ | 145.75 $ | 
| 33.50 $ | 36.75 $ | 47.25 $ | 52.75 $ | 97.25 $ | 
| Howick | N/A | N/A | 67.00 $ | 73.50 $ | 94.50 $ | 160.25 $ | 
| 50.25 $ | 55.00 $ | 71.00 $ | 120.25 $ | 
| 33.50 $ | 36.75 $ | 47.25 $ | 80.25 $ | 
| Ste-Martine | N/A | N/A | N/A | 67.00 $ | 73.50 $ | 114.00 $ | 
| 50.25 $ | 55.00 $ | 85.50 $ | 
| 33.50 $ | 36.75 $ | 57.25 $ | 
| Mercier/Chateauguay | N/A | N/A | N/A | N/A | 67.00 $ | 100.75 $ | 
| 50.25 $ | 75.50 $ | 
| 33.50 $ | 50.50 $ | 
| Monthly Pass | 1 Calendar Month | Huntingdon/Godmanchester | 78.25 $ | 91.25 $ | 104.50 $ | 130.50 $ | 156.50 $ | 296.00 $ | 
| 58.75 $ | 68.50 $ | 78.50 $ | 98.00 $ | 117.50 $ | 222.00 $ | 
| 39.25 $ | 45.75 $ | 52.25 $ | 65.25 $ | 78.25 $ | 148.00 $ | 
| Ormstown | N/A | 78.25 $ | 91.25 $ | 104.50 $ | 130.50 $ | 256.00 $ | 
| 58.75 $ | 68.50 $ | 78.50 $ | 98.00 $ | 192.00 $ | 
| 39.25 $ | 45.75 $ | 52.25 $ | 65.25 $ | 128.00 $ | 
| Howick | N/A | N/A | 78.25 $ | 91.25 $ | 104.50 $ | 214.25 $ | 
| 58.75 $ | 68.50 $ | 78.50 $ | 160.75 $ | 
| 39.25 $ | 45.75 $ | 52.25 $ | 107.25 $ | 
| Ste-Martine | N/A | N/A | N/A | 78.25 $ | 91.25 $ | 155.75 $ | 
| 58.75 $ | 68.50 $ | 117.00 $ | 
| 39.25 $ | 45.75 $ | 78.00 $ | 
| Mercier/Chateauguay | N/A | N/A | N/A | N/A | 78.25 $ | 133.75 $ | 
| 58.75 $ | 100.25 $ | 
| 39.25 $ | 67.00 $ | 
| Legend | 
| Regular Fare | Passengers aged 18 to 65 years old | 
| Student Fare | Full-time students aged from 18 to 25 years old | 
| Reduced Fare | Passengers aged 18 and under and 65 and over | 
Routes
Current Routes
| # | Route Name | Route Type |   | http://imgur.com/hKCP7.jpg | Remarks | 
| 1 | Huntingdon/Angrignon | Regular | Huntingdon | Station Angrignon |  | Some departures start and end at CÉGEP André-Laurendeau
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| Huntingdon/Place Bonaventure | Huntingdon | Place Bonaventure |  |  | 
| Ste-Martine/Place Bonaventure | Rush Hour | Ste-Martine | Place Bonaventure |  |  | 
| Mercier/Place Bonaventure | Rush Hour | Mercier | Place Bonaventure |  |  | 
| Ste-Martine/CÉGEP | Express | Ste-Martine | CÉGEP André-Laurendeau |  | Provides service during the school year only.
 | 
Fleet Roster
Current Fleet
| Thumbnail | Fleet number | Status | Year | Manufacturer & Model | Engine & Transmission | License Plate | Remarks | 
|  | 320 | Active | 1994 | Prevost H3-40 | Detroit Diesel 8V92TA & Allison HT-740 |  |  | 
|  | 329 | Active | 1996 | Prevost Le Mirage XL-45 | Detroit Diesel Series 60 & Allison B500R |  | Ex-Orléans Express #4655.
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|  | 330 | Active | 2001 | Prevost Le Mirage XL-II | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 333 | Active | 1996 | Prevost Le Mirage XL-45 | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 337 | Active | 2002 | Prevost Le Mirage XL-II | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 338 | Active | 2001 | Prevost Le Mirage XL-II | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 339 | Active | 2008 | Prevost X3-45 | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 341 | Active | 2000 | Prevost Le Mirage XL-II | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 342 | Active | 2009 | Motor Coach Industries D4505 | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 343 | Active | 2004 | Prevost Le Mirage XL-II | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 344 | Active | 2008 | Prevost X3-45 | Detroit Diesel Series 60 & Allison B500R |  |  | 
|  | 345 | Active | 2001 | Prevost Le Mirage XL-II | Detroit Diesel Series 60 & Allison B500R |  |  |