September 17, 2010
Evolution of the 1:24K Map Series at TVA
• When TVA was created, few detailed maps of the region existed. Mapping the
region using standard field surveying methods of the time would take decades.
TVA, along with a number of USGS employees working in Chattanooga,
developed a production process to map the region from aerial photographs.
Using this new planimetric mapping process, the region was mapped in just a
few short years. That original map series was then updated with topographic
mapping. All these map series were part of the 1:24K National Mapping Series.
• Speaker: Alan W. Voss
Mr. Voss graduated from the University of Wisconsin at Madison with degrees
(B.S. 1970 and M.S. 1971) in Civil Engineering with a Surveying and Mapping
Specialty. He also has three years post graduate experience at the University.
He then worked at the Tennessee Valley Authority in various positions in the
Maps and Surveys Branch. He retired in 2006 as the Manager, Special Projects
in the Geographic Information and Engineering department. Mr. Voss has been
an active member of the American Society for Photogrammetry and Remote
Sensing (ASPRS) throughout his career serving in many positions including eight
years on the National Board of Directors. He is currently the Co-Chairman of the
ASPRS Films Committee.
• Speaker: Major McCollough
Dr. Major McCollough is a 34-year career employee of TVA, serving as Chief
Cartographer in Geographic Information and Engineering and as Director of
External Archaeological Services. He is a certified GIS professional and earned
Ph.D. and M.A. degrees in Anthropology at the University of Pennsylvania and a
B.S. degree in Chemistry at Grove City College. He has taught and conducted
research at Ohio State University, the University of Tennessee, Knoxville, and the
University of the South. He is best known in Chattanooga for his long term
research and advocacy that led to the creation of Moccasin Bend National Park
and Williams Island State Archaeological Park—1500 acres of historical parkland
inside the city that preserves the most comprehensive sample of Native
American, Early Spanish Contact, Trail of Tears, and Civil War archaeological
resources in the United States.
Surveying and Mapping Procedures Circa 1940s
Due to TVA’s great success in the 1930’s and 1940s, foreign countries often
came to TVA for assistance so they could replicate these best practices. TVA
created a video documenting current surveying and mapping procedures for Pan
American counties as part of this knowledge and technology transfer effort.
• Speaker: Roy Teal
Mr. Teal is the Senior Manager of Geographic Information & Engineering for the
Tennessee Valley Authority. He has 30 years of mapping, photogrammetry, GIS,
and surveying experience including working for a private surveying firm in
Massachusetts and Alabama Power Company. He graduated in 1980 from the
University of Maine with a B.S. degree in Surveying Engineering. He has served
on the National Board of Directors for the American Society for Photogrammetry
and Remote Sensing. He is a Professional Land Surveyor in Alabama and a
Original Reservoir Property Mapping at TVA
In the course of building numerous hydroelectric and flood control dams, TVA has
to acquire a lot property that would eventually be flooded. Most of that surveying
work was completed using plane table surveys, and resulted in the Land
Acquisition Map Series.
• Speaker TBD
TVA’s Role in Mapping for the Department of Defense
TVA was called on during World War II to assist the Department of Defense in
mapping enemy territories. TVA mapped parts of 11 foreign countries, including
Germany and Japan. It was a huge process involving some 500 men and
women, who worked nearly 1.5 million hours over the course of the war.
• Speaker Ray Mitchell
Mr. Mitchell has over 30 years with the Tennessee Valley Authority and currently
is a Project Specialist with Geographic Information and Engineering. He is a
graduate of the Georgia Military College with a B.S. in Environmental Geology
from the University of Tennessee at Chattanooga. He is certified by the
American Society of Photogrammetry and Remote Sensing and is licensed as a
Professional Geologist in the State of Tennessee. Mr. Mitchell is a retired
Lieutenant Colonel from the U.S. Army Reserves with over 28 years of service
where he participated in several oversees campaigns and received a number of
awards and decorations.
The Geospatial Revolution Project
"The location of anything is becoming everything." Penn State Public
Broadcasting is developing the Geospatial Revolution Project, an integrated
public media and outreach initiative about the world of digital mapping and how it
is changing the way we think, behave, and interact. The project will feature a
web-based serial release of video episodes—each telling an intriguing geospatial
• Speaker Uwe Zitzow
Mr. Zitzow holds a B.S. in Mechanical Engineering from the University of Miami
and a M.S. in Mechanical Engineering from the Tennessee Tech University. He is
retired form TVA, having served 25 years in the engineering and management of
power-related research and development programs including advanced power
cycles, coal gasification, coal pyrolysis and energy recovery from waste. He is
co-owner of a technology development company that is introducing an improved
method for recycling tires. He has a keen interest in the history of map making
and is currently involved with the ASPRS effort to acquire historical information
and materials on the evolution of mapping technology.
• History of TVA Video
A video documentary history of TVA that was created by the TVA Retirees
Resource Corporation in celebration of TVA’s 75th anniversary.