Related Clues:

• Arctic topper
• Cut through Panama
• Polar peak
• Global warming casualty
• Panama divider
• Global warming panel concern
• Gondola's route
• Greenhouse gas victim
• Manmade waterway
• Ottawa Region's Rideau______
• Structure with locks
• Place for a low bridge
• It may have locks on it
• Man-made waterway
• Top-of-the-world topper