Lake Gibson via First Street Louth

At just 1.5km, Lake Gibson via First Street Louth is short but deceptively intense — 75m of elevation packed into a brief, breathless effort. The average gradient of 4.8% disguises ramps of 11.4% — the kind of gradient that turns plans into prayers. It's over before the legs know what happened — a short, explosive effort where momentum is everything. Located in Ontario, Canada.