BlueChart® g3 Vision® HD - VUS020R - St. Lawrence Seaway - microSD™/SD™
Covers the St. Lawrence River from Brockville, Ont. to Sept-Iles, Que., including Montreal and Quebec. Also includes detailed coverage of Lake Champlain and Lac Saint-Jean, including Burlington, VT, Rideau River, the Ottawa River to Temiscaming, the Riviere Saguenay from Chicoutimi, Que. to the St. Lawrence River, and the Hudson River to Troy, NY.
Premier Coastal Navigation Charts
- Provides industry-leading coverage, clarity and detail with updated coastal charts that feature integrated Garmin and Navionics® data
- Auto Guidance¹ technology uses your desired depth and overhead clearance to calculate routes and show a suggested path to follow
- High-resolution relief shading combines color and shadow to give you an easy-to-interpret, clearer view of bottom structure than contour lines alone
- Depth Range Shading provides up to 10 depth ranges, enabling you to view your target depth at a glance
- Up to 1’ contours provide a more accurate depiction of the bottom structure for improved fishing charts and navigation in swamps, canals and marinas
Experience unparalleled coverage and brilliant detail on the water. BlueChart g3 Vision coastal charts provide industry-leading coverage, clarity and detail with integrated Garmin and Navionics data, Auto Guidance technology and high-resolution relief shading..
Auto Guidance Technology
The Auto Guidance feature¹ uses your desired depth and overhead clearance to calculate a route and a suggested path to follow.
High-resolution Relief Shading Feature
High-resolution relief shading combines color and shadow to give you an easy-to-interpret, clearer view of bottom structure than contour lines alone.
Up to 1’ Contours
The closer the contour lines, the more accurate the depiction of the bottom structure for improved fishing charts and navigation in swamps, canals and marinas.
NOAA Raster Cartography
If you prefer your display to have the look of paper charts, NOAA raster cartography2 is available as a free downloadable feature via the ActiveCaptain® app.
Depth Range Shading
This feature provides up to 10 depth ranges, enabling you to view your target depth at a glance.
Shallow Water Shading
This feature allows you to use shading to designate the shallow water depths you need to avoid.
High-resolution Satellite Imagery
These detailed images of ports, marinas, bridges and navigational landmarks help provide you with superior situational awareness.
Unique 3-D Views
MarinerEye and FishEye views provide additional perspective both above and below the water line.
¹Auto Guidance is for planning purposes only and does not replace safe navigation operations
²Raster cartography cannot be viewed on echoMAP CHIRP and ECHOMAP Plus combos but can be viewed on mobile devices via the ActiveCaptain mobile app
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to .