洞窟入口
Steinugleflåget
A dry cave on the side of a large collapse above Plurdalen whose flooded pools, about 100 m below the entrance, form the upper end of Pluragrotta's deep section. Reaching the water involves steep, loose dry caving; this is an expedition site, not a normal dive.
Steinugleflåget opens at the side of a large collapse doline on the hillside above Plurdalen. A steep dry cave, with a tight first section and then large boulder halls, descends roughly 100 m to the flooded pools where diving starts. A Finnish team that dived here in August 2010 needed two days to carry two rebreathers and bailout cylinders down and two days to bring them out, and described loose rock as the main hazard above water.
Underwater, the pools lead to large, sandy-floored passages; the 2010 team found areas descending to about 70 m. NGDF describes Steinugleflåget as the upper point of the Plura deep run, giving a second entrance to Pluragrotta through a section reaching about 130 m.
環境
Clear water around 6 °C (August 2010 observation), sandy floors that silt easily, scalloped rock, and a cold dry cave (about +3 °C air) above the water.
コンディション
Only a single summer observation (+6 °C, August 2010) is published. Gear transport through the dry cave is the main logistical challenge.
公表資料からの一般的な範囲であり、現在のコンディションではありません。
他のエントランス（{n}） Pluragrotta–Steinugleflåget system
方向確認用であり、ナビゲーション用ではありません。白抜きのドットはおおよその位置を示しています。
このページのすべての情報とその出典 (6)
| 情報 | ステータス | 出典 |
|---|---|---|
| The diving pools lie about 100 m below the dry-cave entrance, which opens at the side of a large collapse.Trip report from 2010. | 報告済み | [1] |
| Passages from the Steinugleflåget pools descend to about 70 m in the areas the 2010 team dived.2010 observation; the deeper connecting section to Pluragrotta reaches about 130 m according to NGDF. | 情報が古い可能性があります | [1] |
| Water was +6 °C and air inside the mountain +3 °C in August 2010.Single 2010 observation. | 情報が古い可能性があります | [1] |
| Steinugleflåget is the upper end of the Plura deep run and a second entrance to Pluragrotta. | 確認済み | [2] |
| The 2010 team began the trip on the day they received an acceptance, implying permission was required.Who grants permission is not stated. | 報告済み | [1] |
| No requirements are published; the 2010 team mentions receiving an acceptance before diving. | 報告済み | [1] |
確認済み：直接開いた公式または一次情報源による記載。報告ベース：二次情報源のみによるもの。情報が競合：注釈に両方のバージョンを記載。最新情報でない可能性あり：確認できた最新の情報源が古い。
上記のソースをもとに、独自の言葉でまとめています。 修正を報告する