The National Geographic Magazine, Vol. I., No. 3, July, 1889

"The National Geographic Magazine, Vol. I., No. 3, July, 1889" by Various, is a collection of articles that transports readers to the geographical wonders and geological enigmas of late 19th-century Pennsylvania. It unveils the secrets of Pennsylvania's rivers and valleys, venturing into the geological past to understand how water sculpted the land. It's a journey through time, exploring the roots of cartography, hydrology, and the dramatic geological events that molded the region's distinct features. Davis's opening narrative on Pennsylvania's waterways invites readers to solve a puzzle: how did these rivers carve their paths, and what prehistoric forces set them in motion?