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General view of the Cathcart Tower, showing the cylindrical tower with the shallow, conical snow roof that covers the parapet and gun platform, 1992.

Parks Canada Agency / Agence Parcs Canada, 1997.

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Side view of Cathcart Tower, showing the massively constructed, smooth, steep exterior walls built of tightly fitting limestone blocks and two of the four evenly spaced caponiers around the base, 1992.

Parks Canada Agency / Agence Parcs Canada, 1992.