Finding water in mountains

A viewer request.
How to find clean drinking water.
Go downhill until you find the place where 2 mountains meet or where the mountain becomes a flat zone.
Keep going downstream.
The stream will eventually lead to the ocean, (in most cases).
If you come to a waterfall, go the long way around to avoid falling over the edge.
If you find a dry creek bed, look for certain trees like Australian Paper bark trees or weeping willows.
In deserts, look for kurrajong trees and boabs or bottle trees, you can juice them by scraping the fibres to squeeze water out.
Make sure the water is flowing, exposed to sunlight (for U.V. Light) and if possible, that it has frog, dragon flies, lizards and fish living in it.