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A History of Surveying. Most images have been provided by Ken Allred, ALS, CLS and Patrick Ringwood, BCLS, CLS. From Eratosthenes to GPD. Eratosthenes 276 B.C. 3800 BC. The oldest known topographic map on a clay tablet of a northern part of Mesopotamia.
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A History of Surveying Most images have been provided by Ken Allred, ALS, CLS and Patrick Ringwood, BCLS, CLS
From Eratosthenes to GPD Eratosthenes 276 B.C.
3800 BC The oldest known topographic map on a clay tablet of a northern part of Mesopotamia
Zechariah 2:1 • I lifted up mine eyes again, and looked, and behold a man with a measuring line in his hand.
Early Egyptian Civilization • The Pyramids • Pythagoras • Flooding of the Nile • Early cadastral records to 3400 BC
1st Century – 11th Century • Compass developed • Chinese invention - south pointing spoon (lodestone) • Used as a divining tool in the practice of fengshui • Magnetized needles used as direction pointers in the 8th century AD in China • Ca. 850 and 1050 common as marine navigational aids
1571 Leonard Digges Invented the Theodolite - England
Early Explorers • Samuel de Champlain • Peter Fidler • David Thompson • Captain James Cook
Samuel de Champlain 1608 Samuel de Champlain
Philip Turnor & Peter Fidler Lake Athabasca - 1791 From the book: Canada’s Forgotten Surveyor by Peter Fidler
David Thompson Columbia River 1806 David Thompson
Peter Fidler Elk Point, Alberta From the ALS News Magazine
Surveyors and Statesmen • Mount Rushmore: Three Surveyors and another guy!
George Washington Surveyor 1747-1752
Surveying • Essential for settlement • Early land information system From an ALSA Brochure
Technological Revolution • 1950 • Geodimeter • Tellurometer • 1970 • Desk Top Computer • Total Stations • 1990 • Geographic Information Systems • Satellite Positioning Systems • 2000 • High Resolution Imagery
Global Positioning Systems Selective availability turned off in 2000