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.

Most meetings are held on Tuesday evenings at the Denver Public Library, 5th Floor, Gates Room, at 5:30 PM.

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

McGuirk photo

Donald L. McGuirk

Denver Public Library
5th Floor, Gates Room
Tuesday at 5:30 PM
Free and open to the Public


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:

Upcoming Meetings -- Save the dates!

October 8-12, 2017

International Map Collectors' Society (IMCoS)
35th International Symposium - Hamburg, Germany.


November 7, 2017

Annual Scholar lecture
Imre Demhardt: "The Rio Colorado of the West: 19th Century Exploration and Cartography."


January 16, 2018

Vincent Szilagyi: "The Scramble for Africa: Colonial Africa Explored through Maps and Artwork."


February 13, 2018

Joseph Kerski: "The 100 Most Revolutaionary Discoveries in the Field of Geography"


Announcements by RMMS Members

New Academy Course: 21st Century Maps: Smart Mapping
RMMS Member Joseph Kerski is Education Manager at ESRI, Inc. in Broomfield. He will lead a skills-based course in creating multimedia story maps at the Academy for Lifelong Learning in Denver on Wednesdays, Oct. 4 - Nov. 1, 2017 from 11:30 AM to 1 PM. For further information and registration, please see 21st Century Maps Course Description.

Save the dates! Joint SHD-RMMS Conference next year.
RMMS has been invited to chair the Society for the History of Discoveries (SHD) conference in Denver on September 20-22, 2018. The SHD conference formally opens Thursday evening with a reception, followed by SHD's program on Friday and Saturday morning. Stay tuned for further details.

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