13 - 
3roadleaf- 
dland, ERTS 
ts were next 
776 sample 
as and class- 
indicated 
: broad 
;ificat I on, 
fication 
vever, that 
>rove use- 
ly mapped 
i on. 
he is the only one in many cases who can bring to bear the local knowledge, 
expertise and experience that is so vital to the successful application of 
these special tools of management. 
Despite the lack of success with ERTS data in this project, its poten 
tial capability in the near future should not be overlooked. It should be 
emphasized again that its applicability was tested under only one set of con 
ditions and only the most rudimentary techniques of data handling, enhancement 
and analysis. This method of approach was in part unavoidable due to the lack 
of funds and facilities to accomplish more sophisticated forms of data analysis 
and in part intentional in that we wished to determine the lowest common denom 
inator in terms of ERTS data analysis equipment and techniques which might 
make it possible for a relatively large number of resource management people to 
utilize it successfully at a reasonable cost. 
ACKNOWLEDGEMENTS 
This project was financed jointly by the Montana State Office of the 
Bureau of Land Management and the University of Minnesota College of Forestry. 
The authors wish to thank the BLM personnel in Montana (and there were many) 
whose interest, enthusiasm, ideas and unselfish effort made possible any suc 
cesses this effort will enjoy. In particular, we wish to express our apprecia 
tion to Montana State Director Edwin Zaidlicz and Mr. James Linne of the 
Washington Office, BLM. 
We drew very heavily both for encouragement and technical guidance from 
both the literature of, and contacts with, a number of investigators in related 
areas. We wish particularly to acknowledge the following persons in this re 
gard: Mr. Robert C. Heller and his staff at the USDA - Forest Service Remote 
Sensing Laboratory in California; Dr. Richard S. Driscoll, Principal Plant 
Ecologist, USDA - Forest Service in Colorado; and Mr. Victor Zsilinszky, 
Ontario Centre for Remote Sensing, Canada. 
This paper is published as Scientific Journal Series Article No. 8853 of 
the University of Minnesota Agricultural Experiment Station, St. Paul. 
rce surveys, 
y/ing forms 
ustrated by 
urce manage- 
he tools of 
job. That 
oney and 
Iso, remote 
her unusually 
to be prac- 
ce that the 
After all, 
REFERENCES 
Batson, F. 
197^: Report on results of a state-wide field test of the 35mm aerial 
photography system. USDI - Bur. Land Mgmt, Mont. State Office 
Report, 35p- 
Cosgriffe, H., J. Linne and M. Meyer 
1973: Forest and rangeland resource inventory with high-altitude color 
infrared aerial photography. IVth Bienn. Workshop for Color 
Aerial Photog. in Plant Sciences, July, 1973, Orono, Me., p. 106-126.