First, scoop up some water. I use a small plastic bag, which works with very shallow sources--look for where water is slipping down an sloped rock and press the bag to the surface. It was sunny and hot this day, hence the trailside fashion that caused Brian's kids some embarrassment. That's Mr. Patrick Poppins if you please.
Hmmm, wonder if this has giardia...?
Clear, cold, and coming right out of the hill is good - Cheers!
Try not to let water run all over your face. The plastic bag is not always ideal as a cup, but Brian has respectfully zoomed out to conceal any evidence.