CCGS Samuel Risley is a Canadian Coast Guard icebreaker and buoy tender assigned to the Upper Great Lakes area (Central and Arctic Region). Named after the 19th century maritime inspector and first head of Board of Steamship Inspectors (1858-1889) Samuel Risley (1821 in New York City-?) for Upper Canada and Ontario, she is a light icebreaker with a capability to break ice up to 2 feet (0.61 m) thick. Based in the Great Lakes, CCGS Samuel Risley is responsible for keeping an ice-free passage between Port Colborne, Ontario and Thunder Bay, Ontario.