Wild & scenic Pennsylvania

Wild Pennsylvania : a celebration of our state's natural beauty

A Pennsylvania album : picture postcards, 1900-1930

Rafting days in Pennsylvania

Allegheny episodes; folk lore and legends collected in northern and western Pennsylvania

Old trails and roads in Penn's land

Guide to the historical markers of Pennsylvania, erected by the Pennsylvania Historical and Museum Commission

Pennsylvania's historic places

A history of the origin of the appellation Keystone State as applied to the commonwealth of Pennsylvania : together with extracts from many authorities relative to the adoption of the Declaration of Independence by the Continental Congress, July 4th, 1776 : to which is appended the New Constitution of Pennsylvania with an alphabetical contents

Our Pennsylvania

It's an old Pennsylvania custom

Pennsylvania's tapestry : scenes from the air

Pennsylvania

Pennsylvania

Windows on our past

It's an old Pennsylvania custom

National geographic rarely seen : photographs of the extraordinary

Logging in the Pennsylvania North woods : a collection of turn of the century photographs

Flood : [a history of the 1936 flood of the West Branch Valley]

Penn State forever : 1855-2005

Times of sorrow & hope : documenting everyday life in Pennsylvania during the Depression and World War II : a photographic record

Remembering the Pennsylvania railroad

Along Pennsylvania's Lincoln Highway

Floods and high water, 1936. Pennsylvania's greatest flood disaster in pictures.-

Trees of Pennsylvania : a complete reference guide

Ansel Adams in the national parks : photographs from America's wild places

Pennsylvania waterfalls : a guide for hikers and photographers

Farming, always farming : a photographic essay of rural Pennsylvania German land and life

Fields of peace : a Pennsylvania German album

Raise the song : the Pennsylvania State University

Penn's Woods West

Great natural areas in western Pennsylvania

Illustrating an Anthracite era : the photographic legacy of John Horgan, Jr.

Rambling through Penn's Woods : selections from The Pennsylvania Naturalist

This good Earth : the view from Audubon magazine

The big book of cats

Pennsylvania gardener's guide

History of Delaware County, Pennsylvania, from the discovery of the territory included within its limit to the present time, with a notice of the geology of the county, and catalogues of its minerals, plants, quadrupeds, and birds, written under the direction and appointment of the Delaware County Institute of Science

The history of Bucks County, Pennsylvania, from the discovery of the Delaware to the present time

Outstanding scenic geological features of Pennsylvania

Earth from above