1. A History of Surveying Most images have been provided by Ken Allred, ALS, CLS and Patrick Ringwood, BCLS, CLS

2. From Eratosthenes to GPS A History of Surveying Eratosthenes 276 B.C.

3. 3800 BC The oldest known topographic map on a clay tablet of a northern part of Mesopotamia

4. Cadastral Plan - Mesopatamia - 1700 BC

5. I lifted up mine eyes again, and looked, and behold a man with a measuring line in his hand. Zechariah 2:1

6. The Rope Stretchers

7. Pythagoras The Pyramids Early cadastral records to 3400 BC Early Egyptian Civilization Flooding of the Nile

8. Ancient Boundary Stone

9. 1 st Century – 11 th Century AD – Compass developed Chinese invention - south pointing spoon (lodestone) used as a divining tool in the practice of feng shui magnetized needles used as direction pointers in the 8th century AD in China ca. 850 and 1050 common as marine navigational aids

10. Gerard Mercator - c. 1550

11. 1571 Leonard Digges Invented the Theodolite - England

12. The Sextant 1730

13. Early explorers Samuel de Champlain Peter Fidler David Thompson Captain James Cook

14. Samuel de Champlain 1608

15. Philip Turnor & Peter Fidler Lake Athabasca - 1791 From the book: Canada’s Forgotten Surveyor by Peter Fidler

16. David Thompson Columbia River 1806

17. Peter Fidler Elk Point, Alberta From the ALS News Magazine

18. Surveyors and Statesmen Three Surveyors and another guy! Mount Rushmore

19. George Washington Surveyor 1747-52

20. Essential for settlement Early land information system From an ALSA Brochure

21. Technological Revolution 1950’s - Geodimeter – Tellurometer 1970’s - Desk Top Computer – Total Stations 1990’s - Geographic Information Systems 1990’s - Satellite Positioning Systems 2000’s – High Resolution Imagery

22. Global Positioning Systems Selective Availability Turned off in 2000