Portland Navigation Triangle – 200mm Hema Map from La Crosse to Prairie

from La Crosse to Prairie du Chien

and authority—an elegant counterpoint to its formidable mechanical intelligence

UV- and weather-resistant for long-lasting display

Printing: High-resolution

Corporate Offices – for RAP-compliant internal displays and public commitments to reconciliation

Portland Navigation Triangle – 200mm Hema Map from La Crosse to PrairiePortland Navigation Triangle 200 mm Precision Chartwork Compact & Accurate A Navigation Essential The Portland 200 mm Navigation Triangle is a trusted chart plotting tool designed for accurate bearings, course lines, and measurements on nautical charts. Compact, clear, and easy to handle, its ideal for skippers, students, and instructors who want dependable precision without cluttering the chart table. Manufactured to professional standards by