Rocky Mountain Map Society


The Rocky Mountain Map Society is a non-profit organization dedicated to the study and appreciation of maps and other items of cartographic interest. The Society was formed in 1991 and is based in Denver, Colorado.

September 19, 2017 – Donald L. McGuirk: “A Survey of the Stars and Stripes on Early Maps, 1777-1795”




Donald L. McGuirk


5:30 PM at Denver Public Library, 5th Floor, Gates Room


This program is free and open to the community.


The first official definition of the United States flag reads: "Resolved, that the flag of the United States be thirteen stripes, alternate red and white; that the union be thirteen stars, white in a blue field, representing a new Constellation." The purpose of this survey is to identify, illustrate, and discuss maps that depict, in part or in whole, a flag meeting that definition.

Dr. Donald L. McGuirk Jr. is a retired physician with a keen interest in early world maps, cartographic myths, and early exploration of the New World. He is a founding member and former president of the Rocky Mountain Map Society. He has been a member of the Philip Lee Phillips Map Society since its inception, and now sits on its steering committee. McGuirk has also been a member of the Society for the History of Discoveries for over thirty years. Additionally, he is a member, in long standing, of the Washington Map Society and the Texas Map Society. A summary of his cartographic publications can be found at: