I was in Whittier in the summer of 2013 to leave on a cruise. I had thought that building was a hotel- no idea it was basically the whole town. Here are a few pictures I took entering and exiting the tunnel.
Not very stable that way though. Perhaps some sort of platform could be used that can easily move through the terrain. Perhaps something native to that region, that has been honed by thousands of years of evolution to trek through this environment efficiently. Read more