Takarunga / Mount Victoria is the highest volcano on Auckland's North Shore, rising to 87 m. Its age is currently unknown. Its lava flows now line much of Devonport's waterfront. An important pa (fortification) once occupied its slopes, and some of the pa's earthworks can still be seen. A scoria mound known as Duders Hill, on Takarunga / Mount Victoria's southern slopes was mostly quarried away. The name Mount Victoria comes from Queen Victoria and the name Takarunga means the hill standing above. Jules Dumont d'Urville climbed the hill in 1827.