Blog

Annual reports and other documents relating to Philadelphia’s water supply system, 1796-1992

February 21, 2024

Added November 29, 2025: Drinking Water Quality reports from the 1960s to the present, listed chronologically. My ultimate goal is to eventually post a comprehensive list of all reports relating to Philadelphia’s water supply, from the late 18th century to the present, with links to PDFs of each. It may be a while before I […]

Map Lovers’ Monday: Philadelphia front and center

February 19, 2024

From the city to the shore to the mountains, this fun, colorful map has it all.

Map Lover’s Monday: Fairmount Park, 1869

February 12, 2024

Three maps from the1870 Annual Report of the Commissioners of Fairmount Park In 1868, Fairmount Park was enlarged to more than 2000 acres with the purchase of land on both banks of the Schuylkill River. One goal of this purchase, and a later purchase of land along Wissahickon Creek, was to protect water quality in […]

The Discovery Center: The creative reuse of an abandoned city reservoir

February 6, 2024

A surprising urban nature center in North Philadelphia.

Plans and maps of the Pennypack Creek Watershed in Philadelphia

February 5, 2024

Maps of the Pennypack Creek watershed, which is mostly protected by a gem of a park in Northeast Philadelphia.

Map showing various routes of transportation in Philadelphia and surrounding area. Focused mainly on suburban Philadelphia areas.

Map Lovers’ Monday: 1896 Suburban Transportation Map

February 5, 2024

Map showing transportation routes in Philadelphia and vicinity, focusing mainly on the suburbs, with many interesting details.

Models of Change

February 4, 2024

A modelmakers’ brochure with local buildings inspires me to find out what came before.

Mount Moriah Historic Cemetery and Arboretum

January 31, 2024

This Victorian burial ground, in the Cobbs Creek watershed, almost disappeared back into the woods. Read about its comeback, and how you can help.

Hand-drawn and colored map depicting a river with streams branching off of it

Map Lovers’ Monday: 1891 Water Supply Plan

January 29, 2024

A priceless set of plans documenting a water supply proposal that amounted to nothing.

Sometimes the backside is the best side

January 26, 2024

It’s not always what’s up front that counts the most.

Buried Treasures No. 1: The Franklin Sugar Refinery

January 25, 2024

Only a ghost now remains of what was one of the largest sugar refining complexes in the United States.

The ecology of Center City, Philadelphia (in case you didn’t know there was any)

January 23, 2024

A fascinating book about nature where you’d least expect it.