- alamy.com stock-photo/proval.htmlPyatigorsk, Russia - Jul 19, 2022: Entrance of Lake Proval, Pyatigorsk, Stavropol Krai. This karst failure is tourist attraction of Pyatigorsk. Scener Stock Photo.
- tr.wiki7.org wiki/Провал_(озеро,_Пятигорск)1864'te Proval Gölü'nde benzeri görülmemiş bir su akışı oldu. ... 1866'da Proval'in girişindeki alan taş duvarla çevriliydi [3] .
- Пятигорск озеро Провал#30 / Pyatigorsk lake Proval. 7:41. ... Озеро Провал в Пятигорске/ The lake Proval in Pyatigorsk. 1:30.
- rbth.com articles/2010/11/03/tour_of_pyatigorsk_…In one of the slopes of Mashuk Mountain there's Proval Lake that is situated in the natural cave and one can get there only through the tunnel hacked through the rock.
- ru.wikivoyage.org wiki/Файл:Proval_Lake_in_…Краткое описание. ОписаниеProval Lake in Pyatigorsk (October 2023) - 8.jpg. Русский: Озеро Провал в Пятигорске: туннель, ведущий к озеру.
- yr.no en/forecast/graph/2-2115217/Russia/Magadan …Ozero Proval. Large lake, Magadan Oblast (Russia), elevation 41 m. Press to show information about this location.
- ProVAL is engineering software used to view and analyze pavement profiles. It's easy to use, yet powerful enough to perform many types of profile analyses.Bulunamadı: lake
- ru.123rf.com photo_18855725_the-tunnel-to-the-…The tunnel to the famous underground lake Proval in Pyatigorsk,Northern Caucasus. ID изображения: 18855725. Тип носителя: Фото со стока.
- FAX : +82-31-499-0836. E-MAIL : proval@proval.co.kr. Send e-mail to proval. Korea valve manufacturer since 1983.Bulunamadı: lake
- wiki2.org ru/Файл:Proval_lake_view_JPG{{Information |Description={{en|1=Entrance to mineral lake Proval in Pyatigorsk, Russia.}} {{ru|1=Вход в минеральное озеро Провал в городе Пятигорск...