Founding fathers
Meander Virginia
Western expansion
Frontier settled with order

Zenith, sector
William Clark was a surveyor

Sleep in trees
Chain mounted surveyor
Ranging transit
Chain, by chain, by chain, by chain, by

Four rods, 22 yards
One cricket pitch
Four rods, 22 yards
80 per mile
Four rods, 22 yards
60 foot six
Four rods, 22 yards
Gunter's chain

Zenith, sector
All of them surveyors

"The want of accurate Maps of the Country which has hitherto been the Scene of War, has been a great disadvantage to me. I have in vain endeavored to procure them and have been obliged to make shift, with such sketches as I could trace from my own Observations . . . ."
- G. Washington