Editing Chesapeake and Ohio Canal (section)

====Section numbers and contracts====
From Lock 5 at Little Falls to Cumberland (as mentioned above, the canal started at Little Falls, and was later extended down to Georgetown), the canal was divided into three divisions (of about {{convert|60|mi|-1}} apiece), each of which was further divided into 120 sections of about {{convert|0.5|mi|m}}. A separate construction contract was issued for each section.<ref>[[#hahn-towpath|Hahn Towpath]] p. 60-61</ref> Locks, culverts, dams, etc. were listed on the contracts by section number, not by mileage as is done today. For instance, Locks 5 and 6 are on Section No. 1,<ref name="Unrau p. 227">[[#Unrau|Unrau]] p. 227</ref> all the way to Guard Lock No. 8 on section 367.<ref>[[#Unrau|Unrau]] p. 239</ref> Sections A–H were in the Georgetown level below lock 5<ref name="Unrau p. 227"/>