those were the days, when you could take your kid to the edge of a cliff without railings, take a picture, and not have someone call the cops on you, sigh
This is so interesting. I looked up more info on it and found out that the photo date is undetermined - and you can still see some streaming water. The falls actually were totally frozen and water flow was stopped in March of 1848. For more info click here: http://www.snopes.com/photos/natural/niagarafalls.asp