From My Nature's Bounteous Beauty Board - The Cameron Falls located inside the Waterton Lakes National Park in Alberta, Canada, turn red when heavy rains occur. Argolite, the red-colored sediment, causes the water to turn red.
Yosemite, February when the fire waterfall appears. The spectacular view of the waterfall is created by the reflection of sunlight hitting the falling water at a specific angle. This rare sight can only be seen at a period towards the end of Feburary.
Bryce Canyon is a geological wonderland of ancient labyrinths and turquoise creeks