1792 Fidler crosses the Rocky Mountains

Wilderness surveyors, Peter Fidler and Philip Turnor

       Explorer Peter Fidler crossed Alberta to the Rocky Mountains somewhere near the head of the Little Bow River, near modern day Calgary. (click here for more on Arrowsmith and Fidler)

       Fidler's astronomical data was given to London mapmaker, Aaron Arrowsmith.  In 1795, Arrowsmith published the first edition of his great and influential map of North America…'exercised a strong influence on the thinking of Thomas Jefferson and the actions of his explorers."