Blog

Water Department Newsletters, 1959-1997

January 20, 2025

These employee newsletters offer a more intimate view of the Philadelphia Water Department than the more formal, public-facing annual reports.

Water Bureau Newspaper Scrapbook, 1942-1952

December 27, 2024

Extra! Extra! Read all about the city’s water and sewer infrastructure 80-some years ago. One warning: it wasn’t a pretty picture.

Map Lovers’ Monday: Circles of Destruction

November 4, 2024

How the government used circles on maps during the Cold War.

The Schuylkill Navigation: A Journey on the Historic Nineteenth Century Waterway

October 31, 2024

An excellent overview of this innovative transportation system, which is older than the Erie Canal.

Thomas Gill Maps of the Schuylkill Navigation, 1827

October 30, 2024

108 watercolor maps showing the Schuylkill Navigation in 1827. This hidden gem, from the Pennsylvania State Archives, is hidden no longer.

Map Lovers’ Monday: Philadelphia Topography

October 28, 2024

A colorful map showing elevations in the city, from 0 to over 400 feet.

Map Lovers’ Monday: AQUA, in the beginning

October 21, 2024

The region’s largest private water supplier continues to grow, and grow, and grow…

Map Lovers’ Monday: Philadelphia Geology, 1881

October 14, 2024

The bright colors of geological maps always lure me in.

Buried Treasures No. 2: Williamson Bros. Company

October 8, 2024

Is it any surprise that this North Philadelphia industrial establishment has been replaced by a shopping mall?

Map Lovers’ Monday: Two views of the Union Canal in central Pennsylvania

October 7, 2024

Rare maps of a mostly-forgotten Pennsylvania canal.

Map Lovers’ Monday: Philadelphia in 1957, according to the Pennsy

September 30, 2024

A 1957 map brochure from the Pennsylvania Railroad

Schuylkill Navigation: Celebrating 200 years

September 29, 2024

Learn more about the upcoming 200th birthday of Pennsylvania’s pioneering slackwater-canal system, with events all along the river in Spring 2025.