
Navigate the technical beauty of the Upper St. Lawrence with the 1435 - Cardinal to Whaleback Shoal Nautical Chart. This professional-grade hydrographic reference is the definitive guide for mariners entering the eastern reaches of the Thousand Islands. Covering the critical stretch from Cardinal to the hazardous Whaleback Shoal, this chart provides the "ground-truth" data required for navigating the international waters between Ontario and New York State.
Produced to the rigorous standards of the Canadian Hydrographic Service (CHS), Chart 1435 includes specialized high-detail insets for technical navigation:
Brockville Narrows Inset: A dedicated 1:15,000 scale inset for the Brockville Narrows, providing the precision required to navigate the tight channels and rocky shoals of this legendary boating hub.
Prescott & Ogdensburg Inset: High-resolution mapping for the international crossing between Prescott, ON and Ogdensburg, NY, including harbor approaches and commercial wharf details.
Whaleback Shoal Coverage: Detailed bathymetry for the transition into the Summerland Group, essential for avoiding the namesake shoals and submerged hazards.
Seaway Shipping Lanes: Clearly identifies the primary commercial shipping lanes, range lights, and buoy systems used by deep-draft vessels transiting toward Lake Ontario.
Beyond the bridge, this chart is a sophisticated piece of maritime history and art for those with a connection to the Thousand Islands.
Official Technical Aesthetic: Showcases the intricate line work, sounding density, and maritime symbols used by professional hydrographers.
Vivid Print Clarity: Printed with high-definition precision on premium, water-resistant material, ensuring every contour line and sounding is sharp and legible.
The Perfect Brockville Gift: An ideal memento for sailors, divers exploring the river's famous shipwrecks, or anyone who calls the St. Lawrence River home.
| Feature | Details |
| Chart Number | 1435 |
| Location | Cardinal, ON to Whaleback Shoal (Thousand Islands) |
| Scale | 1:25,000 (Main Chart); 1:15,000 (Brockville/Prescott Insets) |
| Key Areas | Brockville, Prescott, Ogdensburg NY, Maitland |
| Data Type | Hydrographic (Depths, Harbors, Shipping Channels) |
| Publisher | Canadian Hydrographic Service (CHS) Standards |