1. Eastbound train on the Allegheny Grade, Portage, Pennsylvania.

1. Eastbound train on the Allegheny Grade, Portage, Pennsylvania.

 2. Former Philadelphia & Erie route along the West Branch of the Susquehanna River, Clinton County, Pennsylvania.

2. Former Philadelphia & Erie route along the West Branch of the Susquehanna River, Clinton County, Pennsylvania.

 3. View looking northwest on the Susquehanna River from Chickies Rock, Lancaster County, Pennsylvania.

3. View looking northwest on the Susquehanna River from Chickies Rock, Lancaster County, Pennsylvania.

 4. Former Mainline of Public Works Canal Prism, near Ryde, Pennsylvania.

4. Former Mainline of Public Works Canal Prism, near Ryde, Pennsylvania.

 5. Susquehanna RIver, Marietta, Pennsylvania.

5. Susquehanna RIver, Marietta, Pennsylvania.

 6. Northwest view, Dauphin Narrows, from Marysville, Pennsylvania.

6. Northwest view, Dauphin Narrows, from Marysville, Pennsylvania.

 7. Edgar Thomson Works, Monongahela Valley, near Whitaker, Pennsylvania.

7. Edgar Thomson Works, Monongahela Valley, near Whitaker, Pennsylvania.

 8. Farmhouse along the foothills of Jack's Mountain, Mapleton, Pennsylvania.

8. Farmhouse along the foothills of Jack's Mountain, Mapleton, Pennsylvania.

 9. Former passenger station, Mifflin, Pennsylvania.

9. Former passenger station, Mifflin, Pennsylvania.

 10. Overbrook passenger station and interlocking tower, Philadelphia, Pennsylvania.

10. Overbrook passenger station and interlocking tower, Philadelphia, Pennsylvania.

 11. Wating room detail, passenger station, Lancaster, Pennsylvania.

11. Wating room detail, passenger station, Lancaster, Pennsylvania.

 12. Station headhouse and inclined plane, Johnstown, Pennsylvania.

12. Station headhouse and inclined plane, Johnstown, Pennsylvania.

 13. Mainline looking west, Altoona, Pennsylvania.

13. Mainline looking west, Altoona, Pennsylvania.

 14. High Bridge crossing the Brandywine River, Coatesville, Pennsylvania.

14. High Bridge crossing the Brandywine River, Coatesville, Pennsylvania.

 15. View from West Singer Street, Johnstown, Pennsylvania.

15. View from West Singer Street, Johnstown, Pennsylvania.

 16. West Philadelphia Elevated Branch and 36th Street Connection, Philadelphia, Pennsylvania.

16. West Philadelphia Elevated Branch and 36th Street Connection, Philadelphia, Pennsylvania.

 17. Milling complex on Jury Street, Highspire, Pennsylvania.

17. Milling complex on Jury Street, Highspire, Pennsylvania.

 18. 30th Street, Penn Station and Powelton Avenue Yards, Philadelphia, Pennsylvania.

18. 30th Street, Penn Station and Powelton Avenue Yards, Philadelphia, Pennsylvania.

 19. Conemaugh River and Gautier Mill, Johnstown, Pennsylvania.

19. Conemaugh River and Gautier Mill, Johnstown, Pennsylvania.

 20. Delair bridge and Tioga Avenue Marine Terminal, Delaware River, from Pennsauken, New Jersey.

20. Delair bridge and Tioga Avenue Marine Terminal, Delaware River, from Pennsauken, New Jersey.

 21. Cambria Iron Works, Johnstown, Pennsylvania.

21. Cambria Iron Works, Johnstown, Pennsylvania.

 22. Mainline looking west, Mifflin, Pennsylvania.

22. Mainline looking west, Mifflin, Pennsylvania.

 23. Shocks Mill Bridge, near Marietta, Pennsylvania.

23. Shocks Mill Bridge, near Marietta, Pennsylvania.

 24. Pratt Truss Bridge, Susquehanna River, Selinsgrove, Pennsylvania.

24. Pratt Truss Bridge, Susquehanna River, Selinsgrove, Pennsylvania.

 25. Peter’s Mountain from Sherman’s Creek, Duncannon, Pennsylvania.

25. Peter’s Mountain from Sherman’s Creek, Duncannon, Pennsylvania.

 26. Former General Refractories company housing, Mount Union, Pennsylvania.

26. Former General Refractories company housing, Mount Union, Pennsylvania.

 27. View southeast of Franklin Boro, East Conemaugh, Pennsylvania.

27. View southeast of Franklin Boro, East Conemaugh, Pennsylvania.

 28. Conemaugh & Black Lick railroad yard, Westmont section, Johnstown, Pennsylvania. 2009   Archival digital print, approximately 14"x18” printed on 17"x22” paper

28. Conemaugh & Black Lick railroad yard, Westmont section, Johnstown, Pennsylvania. 2009

Archival digital print, approximately 14"x18” printed on 17"x22” paper

 29. Lincoln High School, Tyrone, Pennsylvania. 2011   Archival digital print, approximately 14"x18” printed on 17"x22” paper

29. Lincoln High School, Tyrone, Pennsylvania. 2011

Archival digital print, approximately 14"x18” printed on 17"x22” paper

 30. Eastbound distant signals, Summerhill, Pennsylvania. 2009   Archival digital print, approximately 14"x18” printed on 17"x22” paper

30. Eastbound distant signals, Summerhill, Pennsylvania. 2009

Archival digital print, approximately 14"x18” printed on 17"x22” paper

 31. Octoraro Creek, near Conowingo, Maryland. 2016   Archival digital print, approximately 14"x18” printed on 17"x22” paper

31. Octoraro Creek, near Conowingo, Maryland. 2016

Archival digital print, approximately 14"x18” printed on 17"x22” paper

 32. Former East Broad Top Railway interchange, Mount Union, Pennsylvania. 2017   Archival digital print, approximately 14"x18” printed on 17"x22” paper

32. Former East Broad Top Railway interchange, Mount Union, Pennsylvania. 2017

Archival digital print, approximately 14"x18” printed on 17"x22” paper

 33. Woodvale yard, Franklin Boro, Pennsylvania. 2011   Archival digital print, approximately 14"x18” printed on 17"x22” paper

33. Woodvale yard, Franklin Boro, Pennsylvania. 2011

Archival digital print, approximately 14"x18” printed on 17"x22” paper

 34. East tunnel portal, Tussey Mountain, Spruce Creek, Pennsylvania.

34. East tunnel portal, Tussey Mountain, Spruce Creek, Pennsylvania.

 35. Trenton Cut-Off spanning Neshaminy Creek, near Langhorne, Pennsylvania.

35. Trenton Cut-Off spanning Neshaminy Creek, near Langhorne, Pennsylvania.

 36. Allegheny Sumit, Tunnelhill, Pennsylvania.

36. Allegheny Sumit, Tunnelhill, Pennsylvania.

 37. The curve at Northbend, near Atglen, Pennsylvania.

37. The curve at Northbend, near Atglen, Pennsylvania.

 38. After Oxbow, Conemaugh Narrows, near Franklin Boro, Pennsylvania.

38. After Oxbow, Conemaugh Narrows, near Franklin Boro, Pennsylvania.

 39. Eastbound descending Horseshoe, Kittanning Point, Blair County, Pennsylvania.

39. Eastbound descending Horseshoe, Kittanning Point, Blair County, Pennsylvania.