Kind:
Inland

Driving areas:
🌊 Atlantic Ocean🇨🇦 Canada🇺🇸 United States of America

Length:
1173 km¹, 2900 km official total length
¹River kilometers or bank length recorded in NavShip, including river arms and harbor entrances.

Availability:
Completely recorded
Recent Update: 24.07.2025²
² This date indicates when an adjustment last took place in the course of the body of water

Recorded:
Locks: 12
Harbours / marinas: 70
Bridges: 15
Berths: 8
Slipways: 4
Fuelstations: 0

Useful information:
With a total length of 2,900 kilometers, the St. Lawrence River is one of the longest rivers in the world and is also called the "great waterway" in the language of the North American natives.

The river was discovered by the Frenchman Jacques Cartier and runs from the Canadian province of Ontario to the US state of New York.

The river is navigable along its entire length and is of great importance as a transportation route. But the river is also very attractive for tourism.

Translated with DeepL.com (free version)

Route:

Map by OpenStreetMap (c) OSM contributors
This map may be used in non-commercial projects with attribution (Quelle 1: navship.org, CC BY-NC-ND 4.0, Quelle 2: openstreetmap.org, ODbL).
Watermarks may not be removed under any circumstances.

Request waterway overview map with symbol legend here (Link).

Information about data associated with this body of water (107 available):
Data by OpenSeaMap (c) OSM contributors, www.openseamap.org

#	Kind	Coordinates	Name	Information
1	Marina	46.74726,-71.34205	Parc Nautique de Cap-Rouge
2	Marina	45.43623,-73.75364	Royal St-Lawrence Yacht Club
3	Marina	45.39024,-73.91519	Club nautique de l'Île Perrot
4	Marina	45.22569,-74.29548	Rachel Marine Sport
5	Marina	45.02767,-74.88358	Stormont Yacht Club
6	Marina	45.42609,-73.8361	Beaconsfield Yacht Club
7	Marina	45.31676,-73.87651	Marina de Beauharnois
8	Marina	44.30522,-76.25939	Trident Yacht Club	+1-613-382-2771 https://trident-yc.ca/
9	Marina	45.0137,-74.71955	Unknown
10	Marina	45.4237,-73.86075	Lord Reading Yacht Club
11	Marina	44.83473,-75.32203	Thousand Islands Yacht Club
12	Marina	45.40336,-73.92341	Baie-d'Urfé Yacht Club
13	Marina	45.07018,-74.5416	Unknown
14	Marina	45.05274,-74.57329	Unknown
15	Marina	44.26336,-76.37705	Treasure Island Marina	+1 613-548-1239
16	Marina	46.9878,-70.54815	Marina de Montmagny
17	Marina	46.82127,-71.20673	Port de Québec - Secteur L'Estuaire
18	Marina	46.81862,-71.20248	Excusions maritime Québec
19	Marina	46.83341,-71.2009	Port de Québec - Secteur Beauport
20	Marina	45.51156,-73.54762	Port d'escale du Vieux Port, quai de l'Horloge	[email protected] +1-514-283-5414 https://www.vieuxportdemontreal.com/port-d-escale
21	Marina	45.5062,-73.55056	Port d'escale du Vieux Port, quai Jacques-Cartier	[email protected] +1-514-283-5414 https://www.vieuxportdemontreal.com/port-d-escale
22	Marina	45.47895,-73.57404	Centre Nautique du Canal
23	Marina	45.43281,-73.68428	Marina d'Escale
24	Marina	44.70004,-75.49587	Unknown
25	Marina	44.70995,-75.51114	Sandra Lawn Marina	+1-613-925-2812 http://www.prescott.ca/en/riverwalk-district/Marina-and-Harbour.asp
26	Marina	44.34312,-75.90784	Carnegie Bay Marina
27	Marina	44.30295,-75.9661	Swan Bay Marina
28	Marina	46.78956,-71.19662	Parc Nautique Lévy
29	Marina	46.78022,-71.20529	Unknown
30	Marina	46.74158,-71.27713	Marina
31	Marina	46.74275,-71.27712	Marina De La Chaudiere
32	Marina	45.54105,-73.51246	Marina de Longueuil - Port de plaisance
33	Marina	45.54093,-73.51428	Unknown
34	Marina	45.53476,-73.51934	Le club nautique de Longueuil
35	Marina	45.51758,-73.52667	Club d'aviron de Montréal
36	Marina	45.40691,-73.59383	Port Sainte-Catherine
37	Marina	45.41009,-73.70755	Kahnawake Marina
38	Marina	45.0195,-74.592	Marina Adams
39	Marina	46.82955,-71.16153	Chantier Davie	https://www.davie.ca
40	Marina	45.42853,-73.82152	Pointe-Claire Yacht Club
41	Marina	44.45385,-75.85814	Unknown
42	Marina	48.84027,-67.57436	Port pour petits bâteaux
43	Marina	46.78366,-71.23495	Yacht Club de Québec
44	Marina	46.79378,-71.22523	Unknown
45	Marina	46.24561,-72.64967	Club Nautique
46	Marina	45.44551,-73.79841	Base de Voile de Pointe-Claire - Grande-Anse
47	Marina	45.45441,-73.56353	Marina de Verdun	+1 514 765-7150
48	Marina	45.25733,-74.13143	Quai fédéral de Valleyfield
49	Marina	45.2548,-74.14503	Marina de Valleyfield
50	Marina	44.13085,-76.32985	Anchor Marina
51	Marina	44.73529,-75.47398	St. Lawrence Marina	[email protected] +1-613-925-5560 https://www.stlawrencemarina.com/
52	Marina	45.16339,-74.42186	Creg Quay	https://cregquay.com/
53	Marina	44.32223,-76.20785	Clark's Marina	[email protected] +1-613-382-0016 https://clarksmarina.ca/
54	Marina	44.32325,-76.1649	Gananoque Municipal Marina	+1-613-382-4088 https://www.gananoque.ca/community-services/parks-and-recreation/municipal-marina
55	Marina	44.32664,-76.16182	Brennan Marine	+1-613-382-3137 https://brennanmarine.net/
56	Marina	44.35525,-76.02944	Unknown	+1-613-659-2380 https://ivyleaclub.ca/ivy-lea-marina/
57	Marina	44.36311,-76.01304	Village Guay marina	[email protected] +1-613-659-3207 https://villagequay.com/
58	Marina	44.36437,-76.01039	The Landing At Ivy Lea	+1-613-659-2927 http://thelandingivylea.com/
59	Marina	44.36416,-76.00573	Unknown
60	Marina	44.38017,-75.93696	Howard's Marine of Rockport Ltd.	+1-613-659-3485 http://www.howardsmarina.com/
61	Marina	44.38218,-75.92997	Hucks Marine &, Resort	[email protected] +1-613-659-3408 https://marina.ca/
62	Marina	45.69488,-73.57229	Marina Bo-bi-no
63	Marina	45.7311,-73.45033	Marina de Repentigny
64	Marina	45.6496,-73.48699	Marina Montréal
65	Marina	45.39057,-73.92972	Marina Île Perrot
66	Marina	48.47949,-68.51267	Marina de Rimouski	http://www.marinarimouski.com
67	Marina	46.06251,-73.18245	Marina Le Bourg d'eau
68	Marina	48.3735,-68.72403	Unknown
69	Marina	44.23414,-76.45037	CFB Kingston Yacht Club	[email protected] +1-613-541-5010 x5483 https://www.cafconnection.ca/Kingston/Adults/Clubs-and-Social-Groups/Sailing-and-Yacht-Club.aspx
70	Marina	44.23406,-76.45024	CFB Kingston Yacht Club	[email protected] +1-613-541-5010 x5483 https://www.cafconnection.ca/Kingston/Adults/Clubs-and-Social-Groups/Sailing-and-Yacht-Club.aspx
71	Bridge	46.3084,-72.56327	Unknown
72	Bridge	46.30645,-72.55991	Unknown
73	Bridge	45.49828,-73.55185	Unknown
74	Bridge	45.49903,-73.55177	Unknown
75	Bridge	45.49589,-73.55208	Unknown
76	Bridge	45.49592,-73.55208	Unknown
77	Bridge	45.49662,-73.55201	Unknown
78	Bridge	45.4967,-73.55148	Unknown
79	Bridge	45.48554,-73.56591	Unknown
80	Bridge	45.48602,-73.56511	Unknown	Maximum passage width: 0.5 m
81	Bridge	45.46697,-73.59066	Unknown
82	Bridge	45.46673,-73.59165	Unknown
83	Bridge	45.43108,-73.66861	Unknown
84	Bridge	45.43131,-73.6679	Unknown
85	Bridge	46.30547,-72.5583	Unknown
86	Slipway	46.81904,-71.21143	Unknown
87	Slipway	46.82174,-71.21306	Unknown
88	Slipway	44.1307,-76.33051	Unknown
89	Slipway	44.32364,-76.16357	Gananoque
90	Berth	46.79029,-71.22521	Quai 108
91	Berth	46.7936,-71.22299	Quai 105
92	Berth	46.79254,-71.22515	Quai 106
93	Berth	46.79171,-71.22583	Quai 107
94	Berth	46.7955,-71.21849	Quai 103
95	Berth	46.79463,-71.22085	Quai 104
96	Berth	46.7975,-71.21485	Quai 101
97	Berth	46.79664,-71.2166	Quai 102
97	Berth	46.79664,-71.2166	Quai 102
98	Lock	45.49864,-73.5518	Unknown
99	Lock	45.49638,-73.55199	Unknown
100	Lock	45.48548,-73.56542	Unknown
101	Lock	45.46683,-73.59115	Unknown
102	Lock	45.43117,-73.66824	Unknown
103	Lock	44.98784,-74.77771	Unknown
104	Lock	44.97925,-74.85011	Unknown
105	Lock	45.49416,-73.51737	Unknown
106	Lock	45.40809,-73.56681	Unknown
107	Lock	45.31646,-73.91876	Unknown
107	Lock	45.31646,-73.91876	Unknown