625 square links equal 1 square rod, sq. rd.

16 " rods

"

1 "

chain, sq. ch.

10 u chains

"

1 acre, A

640 acres equal 1 square mile, sq. mi.

36 square miles or 6 miles square equal 1 township, tp.

Surveyors' Long Measure

7.92 inches

equal

1 link.

25 links

"

1 pole.

100 links

"

1 chain.

10 chains

"

1 furlong.

8 furlongs

"

1 mile.

Used by surveyors, civil engineers, etc., in measuring distances.