Appletons' Popular Science Monthly, June 1899

A fresh look at one of nature’s most iconic spectacles unfolds in this compelling piece, where a railroad engineer’s recent measurements become the key to unlocking the mystery of Niagara’s true age. The author weaves together a century‑long debate, from Sir Charles Lyell’s early guesses to modern surveys that chart the falls’ slow retreat, showing how each generation of scientists has tried to read the river’s hidden timeline.

Drawing on geological clues such as ancient shorelines, massive delta deposits, and the dramatic post‑glacial uplift that once rerouted the Great Lakes’ waters, the article presents a new method that promises a more reliable estimate. While earlier calculations ranged from a few thousand to tens of thousands of years, this fresh approach asks whether the water flow has been steady enough to trust those numbers. Listeners will be drawn into the blend of fieldwork, historic anecdotes, and the ongoing quest to date a natural wonder that continues to shape both landscape and imagination.