| seen by (13) | | location | date |
|---|
 | Lorenzo B. |  | Muot | Sep 18, 2020 |
 | Philip Rasch | | Punt Muragl Staz | Aug 26, 2020 |
 | Holger.LDE | | Berguen | Aug 10, 2020 |
 | Fabio Miotto | | Berguen | Aug 10, 2020 |
 | Davide Galli | | Solis Viaduct | Aug 5, 2020 |
 | chrisschumny | | Preda | Aug 3, 2020 |
 | Smets Philippe | | Fideris | Aug 15, 2019 |
 | Derglarner | | Reichenau-Tamins | Jun 2, 2017 |
 | Frank Andiver | | Samedan Airport | Oct 31, 2014 |
| Massimo Zuccotti | | Samedan | Dec 27, 2011 |
 | Damiano Piovanelli | | Bever | Dec 8, 2011 |
 | Willem J. Steen | | Filisur Bahnhof | May 20, 2009 |
| Dave Edmondston | | Landwasser Viaduct | Jun 22, 2007 |
