The Soo Locks are the most important infrastructure chokepoint in the Great Lakes, and Lockhaven North is the Canadian side of that chokepoint — which means it is simultaneously essential and secondary. The locks themselves sit on the American side, in Lockhaven South, controlled by a rotating consortium of corporate sovereigns who maintain the infrastructure in exchange for shipping tariff revenue. The Canadian side watches. The Canadian side monitors. The Canadian side maintains a parallel set of smaller locks that handle 15% of the traffic and serve as the backup system that everyone pretends isn't a backup system.

The city occupies the north bank of the St. Marys River, facing its American twin across 800 meters of water that carries every cargo vessel transiting between Lake Superior and Lake Huron. The International Bridge connects the two cities — a dual-sovereignty crossing that functions as one of the GLMZ's most surveilled border points. Canadian Border Authority and American corporate security maintain competing checkpoints, and crossing takes between 20 minutes and 4 hours depending on your tier, your documentation, and whether the sovereignty dispute of the week has escalated to the point of selective closures.

Lockhaven North's economy is parasitic on the locks — shipping services, barge maintenance, crew supply, and the intelligence-gathering operations that every interested party maintains here because the shipping traffic is a real-time readout of the GLMZ's economic health. Cormorant Naval Systems operates a sovereign vessel maintenance facility on the waterfront, and Kelpline Logistics manages the Canadian lock operations. The residential city behind the waterfront infrastructure is small, cold, and culturally distinct — a northern Ontario community that identifies more with Grainfort than with Toronto, and that views the locks as both their livelihood and their curse. The chokepoint brings money. The chokepoint also brings everyone who wants to control the chokepoint.