In the anteroom to the effective cable tunnel which connects on a long distance to the hydroelectric power station in Amsteg. Here the pipes and cables go into the ground across to the technical building. Switzerland, Nov 8, 2016. (7/23)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/70981241@N00">Kecko</a>
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