We have provided several helpful links and glossary of terms for your benefit. Please view them and find the answers to your questions. If you still have a question or something you'd like to know more about, call us! We'll help you however we can.

Common measurements used in Surveying and Deeds
1 yard = 3 ft
1 rod, perch, or pole = 16.5 ft
1 rod = 25 link
4 rods = 1 chain
1 chain = 4 rods
1 chain = 66 ft
1 chain = 100 links
25 links = 1 rod
25 links = 16.5 ft
100 links = 1 chain
100 links = 66 ft
1 mile = 80 chains
1 mile = 320 rods
1 mile = 1,760 yds

Resourceful Links:

American Council of Engineering Companies

Bureau of Land Management

Federal Geographic Data Committee

Maryland Society of Surveyors

National Geodetic Survey Site - US Dept. of Commerce

National Wetlands Inventory Site

Online Calculators and Measurements

PLATO - Maryland Plats

USGS - U.S. Geological Survey

US Fish & Wildlife Service


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Thompson & Associates, LLC
402 Hickory Avenue, Suite B • Bel Air, MD 21014
p: 410.803.0696 • f: 410.838.0666
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