improved dates for upper Watervliet side cut locks
improve model of upper side cut, watervliet ny
improve model of upper side cut, watervliet ny
extend water=canal polygon through watervliet
extend water=canal polygon through watervliet
complete Side-Cut locks, Enlarged Erie Canal
add old routing of Hudson Avenue
add old routing of Hudson Avenue
adjust ruins tagging for weigh lock in Watervliet
tweak Rexford Aqueduct of Erie Canal, add image link
improve Weigh Lock, Watervliet NY
add date information to weighlock in watervliet
improve Errie Canal, Watervliet & Cohoes NY
improve Errie Canal, Watervliet & Cohoes NY
improve Erie Canal Maplewood, NY
merge Hudson River Ways, convert to multipolygon
create small multipolygon surrounding Rogers Island