| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1988 | 978-0-9620707-1-6 | P. R. Griswold · Richard H. Kindig · Cynthia Trombly | Georgetown and the Loop |
| 1995 | 978-0-9620707-2-3 | P. R. Griswold | David Moffat's Denver, Northwestern and Pacific: The Moffat Road |
| 1996 | 978-0-9620707-3-0 | '' | The Denver and Salt Lake Railroad, 1913-1926 |