Lopper Tunnel Explained

Lopper Tunnel may refer to:

• Lopper I Rail Tunnel, a Swiss rail tunnel connecting Hergiswil with Alpnach as part of the Brünig line
• Lopper II Rail Tunnel, a Swiss rail tunnel connecting Hergiswil with Stans as part of the Luzern–Stans–Engelberg line
• Lopper Road Tunnel, a Swiss road tunnel connecting Hergiswil with Alpnach as part of the A8 motorway