Revised: Dec 23, 1996
Career
Summary |
Research
Activities |
Teaching
Activities |
Pioneer Trail Research and National Historic Trails |
Research: Spread-spectrum and DSP techniques applied to radio communications and acoustics, image processing, and digital filter design theory
Teaching: Communication systems theory, DSP, spread-spectrum, spectral analysis, statistical communications theory, circuits, and filters.
EE 201 (96S, 97S)
EE 309 Electric Network Design (91F)
EE 331 Electronics II (84F, 86F)
EE 391 The Professional Engineer (95F, 96S, 96F, 97S)
EE 421 Communication Sys I (85S, 85S, 86F, 88F, 94S, 96S)
EE 422 Communication Sys II (87S, 89S, 94F, 96F, 97S)
EE 423 Communication Sys Lab (87F, 89S, 89F, 90S, 91S, 91F, 92S)
EE 461 Senior Design Project I (88S, 90S)
EE 462 Senior Design Project II (90F)
EE 521 Advanced Comm. Sys. II (93F, 95F, 96F)
EE 524 Digital Signal Proc. (85S, 86S, 90S)
EE 527 Statistical Comm Theory (92S, 95S)
EE 590C Spec. Topics Comm Sys (88S)
EE 674H Advanced DSP Spectral Analysis (85F)
Refereed Journals
(Published)
1. Porayath*, J. F. Doherty, and S. F. Russell, "An Adaptive Echo Canceler for Hands-Free Teleconferencing," Digital Signal Processing Journal, Academic Press, vol. 6, no. 1, pp. 29-36, Jan.1996.
2. M. Z. Komodromos*, S. F. Russell, and P. T. P. Tang, "Designof FIR Filters with Complex Desired Frequency Response Using a Generalized Remez Algorithm", IEEE Trans. on Circuits and Systems II: Analog and Digital Signal Processing, Volume 42, No.4, pp. 274-278, April 1995. (postscript)
(Accepted)
3. M. Z. Komodromos*, S. F. Russell, and P. T. P. Tang, "Design of FIR Hilbert Transformers and Differentiators in the Complex Domain", IEEE Trans. on Circuits and Systems II: Analog and Digital Signal Processing, to appear.
(Submitted)
Proceedings Articles
1. J. K. Kayani*, S. F. Russell, and S. J. Wormley, "Self-Noise Suppression in Ultrasonic Correlation Systems", 23rd Annual Review of Progress in Quantitative Nondestructive Evaluation. July 22-August 2, 1996. Bowdoin College, Brunswick, Maine, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1997)(to appear).
2. S. F. Russell, J. K. Kayani*, M. A. K. Afzal*, and S. J. Wormley,"Integrity Monitoring of Pressurized Gas Cylinders using the Spread-Spectrum Ultrasonic Evaluation Technique", Review of Progress in Quantitative NDE, Session 11, University of Washington, Seattle Washington, July 30 - August 4, 1995, eds. D.O. Thompson and D. E. Chimenti (Plenum, New York, 1996) (to appear).
3. J. K. Kayani* and S. F. Russell, "Choice of Spreading Waveform and Correlation Filter for Self-Noise Suppression in Ultrasonic Correlation Systems", Review of Progress in Quantitative NDE,Session 11, University of Washington, Seattle Washington, July 30- August 4, 1995, eds. D. O. Thompson and D. E. Chimenti(Plenum, New York, 1996) (to appear).
4. M. A. K. Afzal*, S. F. Russell, J. K. Kayani*, and S. J .Wormley, "Application of Spread-Spectrum Ultrasonic Evaluation System to Flaw Detection in Concrete", Review of Progress in Quantitative NDE, Session 16, University of Washington, Seattle Washington, July 30 - August 4, 1995, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1996) (to appear).
5. S. F. Russell, J. K. Kayani*, M. A. K. Afzal*, and S. J. Wormley,"Integrity Monitoring of Pressurized Gas Cylinders using the Spread-Spectrum Ultrasonic Evaluation Technique", Review of Progress in Quantitative NDE, Session 11, University of Washington, Seattle Washington, July 30 - August 4, 1995, eds. D.O. Thompson and D. E. Chimenti (Plenum, New York, 1996) (to appear).
6. S. J. Wormley and S. F. Russell, "An Application of Direct-Sequence Spread-Spectrum Ultrasonics to Global Inspection of Bridge Components", Review of Progress in Quantitative NDE,Vol. 14, Session 24, Snowmass Conference Center, Snowmass Village, Colorado, July 31 - August 5, 1994, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1995).
7. J. K. Kayani*, S. F. Russell, M. A. K. Afzal*, and K. F. Hoech*,"Analysis and Design of Two Lab-Grade Prototype Instruments for Direct-Sequence Spread-Spectrum Ultrasonic Evaluation", Review of Progress in Quantitative NDE, Vol. 14, Session 28, Snowmass Conference Center, Snowmass Village, Colorado, July 31 - August 5, 1994, eds. D. O. Thompson and D. E. Chimenti (Plenum, NewYork, 1995).
8. S. F. Russell, J. K. Kayani*, M. A. K. Afzal, and S. Bae, "Direct-Sequence Spread-Spectrum Ultrasonic Evaluation System Design", Review of Progress in Quantitative NDE, Vol. 14, Session 28, Snowmass Conference Center, Snowmass Village, Colorado, July31 - August 5, 1994, eds. D. O. Thompson and D. E. Chimenti(Plenum, New York, 1995).
9. Porayath*, R., Doherty, J. F., and Russell, S. F., "Spread Spectrum Based Acoustic Echo Canceler: Theory and Prototype,"Proceedings of the DSPx Exposition and Symposium, pp. 363-372, San Francisco, CA , June, 1994
10. Rajiv Porayath*, Sanjeev Tavathia*, John F. Doherty, and Steve F. Russell, "Reduced Order Filters for Acoustic Echo Cancellation" , Proceedings of the Third Annual Midwest Electro-Technology Conference, pp. 14-18, Iowa State University, Ames,Iowa, April 8-9, 1994.
11. S. F. Russell, "Theory of Spread-Spectrum Ultrasonic Evaluation ", Review of Progress in Quantitative NDE, Vol. 13A,pp. 841-846, Bowdoin College, Brunswick, Maine, August 1-6,1993, eds. D. O. Thompson and D. E. Chimenti (Plenum, NewYork, 1994).
12. J. K. Kayani*, S. F. Russell, K. F. Hoech*, and S. J. Wormley,"Direct-Sequence Spread-Spectrum Ultrasonic Evaluation System Design", Review of Progress in Quantitative NDE, Vol. 13A, pp.731-738, Bowdoin College, Brunswick, Maine, August 1-6, 1993,eds. D. O. Thompson and D. E. Chimenti (Plenum, New York,1994).
13. M. A. K. Afzal*, S. F. Russell, and S. J. Wormley, "Signal Processing Simulations for a Direct-Sequence Spread-Spectrum Ultrasonic Evaluation System", Review of Progress in Quantitative NDE, Vol. 13A, pp. 847-854, Bowdoin College, Brunswick, Maine, August 1-6, 1993, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1994).
14. S. Bae* and S. F. Russell, "Partial-Length Correlation Theory for Spread-Spectrum Ultrasonic Evaluation Application", Review of Progress in Quantitative NDE, Vol. 13A, pp. 825-832, Bowdoin College, Brunswick, Maine, August 1-6, 1993, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1994).
15. Michael Komodromos* and Steve F. Russell, "Complex Approximation" , Proceedings of the Second Annual Midwest Electro-Technology Converence, pp. 39-42, Iowa State University, Ames, Iowa, April 9-10, 1993.
16. Michael Komodromos* and Steve F. Russell, "Base-n Frequency Synthesizer Designs Employing Thin-Film Resonator Filters", Proceedings of the RF Expo WEST, pp. 243-256, Santa Clara Convention Center, Santa Clara, California, February 5-7,1991.
17. Steve F. Russell, "DSP Demodulation", Proceedings of the RF Expo EAST, pp. 293-302, Marriott's Orlando World Center, Orlando, Florida, November 13-15, 1990.
18. J. Eric Dunn* and Steve F. Russell, "Detection and Sorting of Frequency-Hopped Signals", Proceedings of the RF Expo EAST,pp. 157-168, Marriott's Orlando World Center, Orlando, Florida, November 13-15, 1990.
19. Hariharan*, S. and Steve F. Russell, "Intensity Correction and Dynamic Range Expansion for Digital X-Ray Radiograph Images", Proceedings of the Review of Progress in Quantitative Nondestructive Evaluation, Vol. 8B, pp. 359-364, UCSD, LaJolla, California, August 1-5, 1988.
20. Russell, Steve F. and Chen Y. Wong*, "Digital Radiograph Analysis using Regression Filtering for Edge Enhancement," Proceedings of the 1987 IASTED International Symposium on Signal Processing and Its Applications, Brisbane, Australia,August 24-28, (pp. 644-649), 1987.
21. Russell, Steve F., "Digital Image Acquisition for X-Ray Image Processing," Proceedings of the Review of Progress in Quantitative Nondestructive Evaluation, Vol. 7A, pp. 713-7, Williamsburg, Virginia, June 21-26, 1987.
22. Wong*, Chen Y. and Steve F. Russell, "Two-Dimensional Regression Filtering for Edge Detection," Proceedings of the Review of Progress in Quantitative Nondestructive Evaluation,Vol. 7A, pp. 847-855, Williamsburg, Virginia, June 21-26, 1987.
23. Wong*, Chen Y. and Steve F. Russell, "Regression Filtering for X-Ray Image Edge Enhancement," Proceedings of the 16th Symposium on Nondestructive Evaluation, San Antonio, Texas,April 21-23, (pp. 218-223) 1987.
24. Russell, Steve F., Wroblewski, G. W. and McMackin, J. B.,"HF Radio Network Design Considerations," Proceedings of the MILCOM-86 Conference, Monterey, California, October 5-9, (pp.14.7.1-14.7.9) 1986.
Partnership for the National Trails System
Ballard Community School
American Radio Relay League
2. Direct Sequence Spread Spectrum Ultrasonic Testing Device, October 31, 1995, #5,461,921, E. P. Papadakis, S. F. Russell, and S. J. Wormley. (.GIF, 34KB)
(1) Co-Major with Dr. John Basart
(2) Co-Major with Dr. Robert Weber
PhD Dissertation
S1996 **Jahangir Khan Kayani Development and Application of Spread-Spectrum Ultrasonic Evaluation Technique.
F1993 **Michael Z. Komodromos (1) Design of FIR Filters in the Complex Domain.
Su1991 **Eric Dunn (1) Detection and Classification of Frequency Hopped Signals.
Masters Degree
F1996 Eric Otto Zuber Compressed Image Transmission over a Tactical Data Link (creative component).
F1995 **S. Anders Mattsson (MS) Separation of mutually interfering FM/AM signals.
F1995 Chris W. Johnson (MS) Design and analysis of an inertial calibration Kalman Filter.
F1994 Sangmin Bae (MS) Partial-length correlation theory for spread spectrum ultrasonic applications.
F1994 Bard Dybdal Moe (MS) Adaptive regression filter technique for edge detection and enhancement in digitized radiographs.
F1993 Jainping Wu Miller (MS) Acoustic Echo Cancellation.
F1993 Jahangir K. Kayani (MS) Spread Spectrum Ultrasonic Evaluation System Design.
S1993 M. A. K. Afzal (MS) Correlation modeling of spread spectrum ultrasonic evaluation systems.
S1993 Mark B. Irland (ME) Finite difference equation analysis of flow through a centrifugal compressor.
S1993 Douglas P. Anderson (MS) 2Realizability limits, distortion, and bias considerations of a bipolar active inductor.
S1992 Charles A. Popeck (MS) Systems analysis for a navigation receiver allowing simultaneous utilization of the GLONASS and NAVSTAR GPS satellite navigation systems.
S1992 Michael J. Reilly (ME) Data acquisition software for the DSB ionospheric dispersion project.
S1991 Keiling Richard Ng (MS) Decimation filtering in sigma delta modulation and sideband correlator.
Su1990 Donald Yochem (MS) Theoretical operation of an independent sideband receiver and sideband correlator.
Su1990 Jeffrey Solum (MS) A pitch detector for use in a bandlimited noisy channel
Su1990 Hyunduk Ahn (MS) Software design of an A-scan simulator.
S1990 Virden Evans (MS) Independent Sideband Receiver: Using the phase-shift method for sideband correlation.
S1990 Michael Komodromos (MS) Frequency Synthesis.
F1989 William Piche (MS) Design and Performance Analysis of Kalman Filters for a General Aviation Aircraft Approach Control System.
S1989 Saqib Karim (MS) Hilbert Transform Implementations for Independent Sideband Receivers.
F1987 Eric Dunn (MS) Input Error Sensitivity Analysis for Network State Estimation and the Transient Energy Function Method.
F1987 Jim Crowder (MS) Automated Angular Scans to Determine Enhancements of Industrial Radiographs.
F1987 **Chen Wong (MS) Edge Detection Techniques for Edge Enhancements of Industrial Radiographs.
S1986 Eric Berg (MS) A Survey of Compensation Techniques in High Frequency Radio.
Consulting
Reviewer
Memberships
1993-96 Member American Society for Nondestructive Testing
(ASNT)
1975-96 Member Institute of Electrical and Electronics Engineers,
Communication Society, Ultrasonics, Ferroelectrics & Frequency
Control, Aerospace System.
1978-96 Member Sigma XI - Scientific Research Society of North
America
1986 Member Program Committee, Central Iowa Section - IEEE
College Committees:
1991 Member Faculty Search, Joint Appointment with Statistics
1986 Member College of Engineering Robotics Committee
Department Committees:
1994-96 Member Graduate Committee
1993-96 Member EECpe Department Curriculum Committee
1985-96 Member Communications and Signal Processing Area Committee
1990-92 Chair Communications and Signal Processing Area
1991-92 Member Faculty Search
1990-91 Member Research Committee
1986-88 Member EECpE Department Research Committee
1986-87 Member EECpE Department Graduate Committee
1985-87 Chair Communications and Signal Processing Area Committee
1987 Member EECpe Department Curriculum Committee
1987 Member Palmer Chair Search Committee
1986-88 Chair ISU Image Processing Group
Faculty Advisor for student societies, clubs, and other activities
1995-date Coop Student Faculty Advisor
1991-94 IEEE Faculty Advisor
Acoustic Echo Cancellation
1. Porayath*, J. F. Doherty, and S. F. Russell, "An Adaptive Echo Canceler for Hands-Free Teleconferencing," Digital Signal Processing Journal, Academic Press, vol. 6, no. 1, pp. 29-36, Jan.1996.
2. Porayath*, R., Doherty, J. F., and Russell, S. F., "Spread Spectrum Based Acoustic Echo Canceler: Theory and Prototype,"Proceedings of the DSPx Exposition and Symposium, pp. 363-372, San Francisco, CA , June, 1994
3. Rajiv Porayath*, Sanjeev Tavathia*, John F. Doherty, and SteveF. Russell, "Reduced Order Filters for Acoustic Echo Cancellation" , Proceedings of the Third Annual Midwest Electro-Technology Conference, pp. 14-18, Iowa State University, Ames,Iowa, April 8-9, 1994.
Image Processing
1. Hariharan*, S. and Steve F. Russell, "Intensity Correction and Dynamic Range Expansion for Digital X-Ray Radiograph Images",Proceedings of the Review of Progress in Quantitative Nondestructive Evaluation, Vol. 8B, pp. 359-364, UCSD, LaJolla, California, August 1-5, 1988.
2. Russell, Steve F. and Chen Y. Wong*, "Digital Radiograph Analysis using Regression Filtering for Edge Enhancement," Proceedings of the 1987 IASTED International Symposium on Signal Processing and Its Applications, Brisbane, Australia,August 24-28, (pp. 644-649), 1987.
3. Russell, Steve F., "Digital Image Acquisition for X-Ray Image Processing," Proceedings of the Review of Progress in Quantitative Nondestructive Evaluation, Vol. 7A, pp. 713-721, Williamsburg, Virginia, June 21-26, 1987.
4. Wong*, Chen Y. and Steve F. Russell, "Two-Dimensional Regression Filtering for Edge Detection," Proceedings of the Review of Progress in Quantitative Nondestructive Evaluation,Vol. 7A, pp. 847-855, Williamsburg, Virginia, June 21-26, 1987.
5. Wong*, Chen Y. and Steve F. Russell, "Regression Filtering for X-Ray Image Edge Enhancement," Proceedings of the 16th Symposium on Nondestructive Evaluation, San Antonio, Texas,April 21-23, (pp. 218-223) 1987.
Communication Systems
1. Michael Komodromos* and Steve F. Russell, "Base-n Frequency Synthesizer Designs Employing Thin-Film Resonator Filters",Proceedings of the RF Expo WEST, pp. 243-256, Santa Clara Convention Center, Santa Clara, California, February 5-7, 1991.
2. Steve F. Russell, "DSP Demodulation", Proceedings of the RF Expo EAST, pp. 293-302, Marriott's Orlando World Center,Orlando, Florida, November 13-15, 1990.
3. J. Eric Dunn* and Steve F. Russell, "Detection and Sorting of Frequency-Hopped Signals", Proceedings of the RF Expo EAST,pp. 157-168, Marriott's Orlando World Center, Orlando, Florida, November 13-15, 1990.
4. Russell, Steve F., Wroblewski, G. W. and McMackin, J. B., "HF Radio Network Design Considerations," Proceedings of the MILCOM-86 Conference, Monterey, California, October 5-9, (pp.14.7.1-14.7.9) 1986.
Digital Filtering
1. M. Z. Komodromos*, S. F. Russell, and P. T. P. Tang, "Designof FIR Filters with Complex Desired Frequency Response Using a Generalized Remez Algorithm", IEEE Trans. on Circuits and Systems II: Analog and Digital Signal Processing, Volume 42, No.4, pp. 274-278, April 1995. (postscript)
2. M. Z. Komodromos*, S. F. Russell, and P. T. P. Tang, "Design of FIR Hilbert Transformers and Differentiators in the Complex Domain", IEEE Trans. on Circuits and Systems II: Analog andDigital Signal Processing, to appear.
3. Michael Komodromos* and Steve F. Russell, "ComplexApproximation" , Proceedings of the Second Annual MidwestElectro-Technology Converence, pp. 39-42, Iowa State University,Ames, Iowa, April 9-10, 1993.
Ultrasonic Nondestructive Evaluation
1. J. K. Kayani*, S. F. Russell, and S. J. Wormley, "Self-Noise Suppression in Ultrasonic Correlation Systems", 23rd AnnualReview of Progress in Quantitative Nondestructive Evaluation. July 22-August 2, 1996. Bowdoin College, Brunswick, Maine, eds.D. O. Thompson and D. E. Chimenti (Plenum, New York, 1997)(to appear).
2. S. F. Russell, J. K. Kayani*, M. A. K. Afzal*, and S. J. Wormley,"Integrity Monitoring of Pressurized Gas Cylinders using the Spread-Spectrum Ultrasonic Evaluation Technique", Review of Progress in Quantitative NDE, Session 11, University of Washington, Seattle Washington, July 30 - August 4, 1995, eds. D.O. Thompson and D. E. Chimenti (Plenum, New York, 1996) (toappear).
3. J. K. Kayani* and S. F. Russell, "Choice of Spreading Waveform and Correlation Filter for Self-Noise Suppression in Ultrasonic Correlation Systems", Review of Progress in Quantitative NDE,Session 11, University of Washington, Seattle Washington, July 30- August 4, 1995, eds. D. O. Thompson and D. E. Chimenti(Plenum, New York, 1996) (to appear).
4. M. A. K. Afzal*, S. F. Russell, J. K. Kayani*, and S. J.Wormley, "Application of Spread-Spectrum Ultrasonic EvaluationSystem to Flaw Detection in Concrete", Review of Progress in Quantitative NDE, Session 16, University of Washington, Seattle Washington, July 30 - August 4, 1995, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1996) (to appear).
5. S. F. Russell, J. K. Kayani*, M. A. K. Afzal*, and S. J. Wormley,"Integrity Monitoring of Pressurized Gas Cylinders using the Spread-Spectrum Ultrasonic Evaluation Technique", Review of Progress in Quantitative NDE, Session 11, University ofWashington, Seattle Washington, July 30 - August 4, 1995, eds. D.O. Thompson and D. E. Chimenti (Plenum, New York, 1996) (to appear).
6. S. J. Wormley and S. F. Russell, "An Application of Direct-Sequence Spread-Spectrum Ultrasonics to Global Inspection of Bridge Components", Review of Progress in Quantitative NDE,Vol. 14, Session 24, Snowmass Conference Center, Snowmass Village, Colorado, July 31 - August 5, 1994, eds. D. O. Thompsonand D. E. Chimenti (Plenum, New York, 1995).
7. J. K. Kayani*, S. F. Russell, M. A. K. Afzal*, and K. F. Hoech*,"Analysis and Design of Two Lab-Grade Prototype Instruments for Direct-Sequence Spread-Spectrum Ultrasonic Evaluation", Review of Progress in Quantitative NDE, Vol. 14, Session 28, Snowmass Conference Center, Snowmass Village, Colorado, July 31 - August5, 1994, eds. D. O. Thompson and D. E. Chimenti (Plenum, NewYork, 1995).
8. S. F. Russell, J. K. Kayani*, M. A. K. Afzal, and S. Bae, "Direct-Sequence Spread-Spectrum Ultrasonic Evaluation System Design", Review of Progress in Quantitative NDE, Vol. 14, Session 28, Snowmass Conference Center, Snowmass Village, Colorado, July 31 - August 5, 1994, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1995).
9. S. F. Russell, "Theory of Spread-Spectrum Ultrasonic Evaluation ", Review of Progress in Quantitative NDE, Vol. 13A, pp. 841-846, Bowdoin College, Brunswick, Maine, August 1-6,1993, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1994).
10. J. K. Kayani*, S. F. Russell, K. F. Hoech*, and S. J. Wormley,"Direct-Sequence Spread-Spectrum Ultrasonic Evaluation System Design", Review of Progress in Quantitative NDE, Vol. 13A, pp.731-738, Bowdoin College, Brunswick, Maine, August 1-6, 1993,eds. D. O. Thompson and D. E. Chimenti (Plenum, New York,1994).
11. M. A. K. Afzal*, S. F. Russell, and S. J. Wormley, "Signal Processing Simulations for a Direct-Sequence Spread-Spectrum Ultrasonic Evaluation System", Review of Progress in Quantitative NDE, Vol. 13A, pp. 847-854, Bowdoin College, Brunswick, Maine, August 1-6, 1993, eds. D. O. Thompson and D. E.Chimenti (Plenum, New York, 1994).
12. S. Bae* and S. F. Russell, "Partial-Length Correlation Theory for Spread-Spectrum Ultrasonic Evaluation Application", Review of Progress in Quantitative NDE, Vol. 13A, pp. 825-832, Bowdoin College, Brunswick, Maine, August 1-6, 1993, eds. D. O. Thompson and D. E. Chimenti (Plenum, New York, 1994).
In 1984 Dr. Russell started his avocation of pioneer trail research. His initial interest in the tread followed by Lewis and Clark eventually expanded to include all the major pioneer trails of Western Montana and Northern Idaho. For the Montana Statehood Centennial Year, 1989, he prepared map displays for the Meagher County Historical Association, the Bitter Root Historical Society, and St. Mary's Mission. His 1989 centennial story, "Traveling the Carroll Trail" appeared in the June 1, 1989 edition of the Meagher County News and received a second place award for Best Single Centennial Story in the Montana Better Newspaper Contest.
For most of his research, he has concentrated his efforts on the Lolo Trail System that encompasses the trail treads now known as the Northern Nez Perces Trail, the Lewis and Clark Trail, the Nee-Mee-Poo Trail, the Bird-Truax Trail, and the Virginia City Lewiston Wagon Road. Steve's goal has been to precisely locate the extant trail tread and accurately document its location and existence. His research method involves computer analysis of archival records, map and navigation analysis, and field exploration. During his many years of field work, he has taken hundreds of photographs of the trail treads and various sites along the trail. Today, his involvement with the Lolo Trail System has expanded to include working with the Clearwater National Forest and Nez Perce tribal members on management and preservation planning.
In 1995, Dr. Russell was elected national president of the Nez Perce National Historic Trail Fundation, P.O. Box 20197, Missoula, Montana 59801. He also is the current web master for the Partnership for the National Trails System and acts as a technology consultant to the various trail organizations.