This is a great picture taken in Alaska to show the difference between water generated from a glacier (on the left - filled with sand and dirt from the glacier) and the clear water generated from snow melt on the right. In both cases, the water was sooo cold. Like the cold when your woolen-mittens-get-wet-but-you-still-play-in-the-snow kind of cold.
Here's a picture of the silt that remains after a glacier has receded. It's this fine sand that is carried so easily by the runoff, but you can see that much is left behind waiting for the first brave plants to seed the area. (I learned that Fireweed usually takes this honor.)
And this picture shows how clear the water is in the lakes in Alaska. I remember there was a bear on the lower-left side of the lake grabbing a quick drink, although I can't find him in the picture now.