Related Clues:

• Mine entryway
• Mine opening
• Mine entry
• Collier's way in
• Collier's portal
• Passage
• Nearly horizontal entrance to a mine
• Entrance for extraction
• Shaft entrance
• Miner's approach
• Miner's entrance
• Colliery opening
• Tram access
• Access to 2-Down
• Entrance for a collier