Visited the Kurängen spring area (~60.2885,25.2120) and collected a few liters of water. We couldn’t locate a wooden edge-structure mentioned in the Helsingin … julkaisuja 17/2013 survey (pg.8) but there were a lot of clean ponds and some build structures in the area we explored. A knee high π shaped marker stood still in a dry pond. It had been assembled using Torx screws which dates the structure to later then ~2010 . A big pond close by offered the cleanest water we could find. It was odorless and had a yellowish hue. In a taste test (compared to Faux S.Pellegrino & tap water) the Kurängen water had a mellow tone which is possibly due to iron in the soil (alkaline?). Comparing the color of tap water with a glass of Kurängen is like comparing a 5000k lamp to 2700k lamp. Tap water looks sterile. I’m hoping to use the Kurängen water in upcoming mineral water performances in Helsinki (Mad House & Kiasma esitys_nyt). The https://kartta.hel.fi/ city map service service shows multiple “water holes” and “basins” in the region. The service uses ┴ symbol for water holes (Ascii code 193). There are two interesting sites to explore further 60.286063, 25.206394 and the other is deeper in the forest 60.287891, 25.204271 (I think this is the area we visited).