sections of Enlarged Erie Canal visible today
add Old Canal (Champlain Canal) at Fort Edwards, NY
improve enlarged erie canal, cohoes NY
improve erie, champlain canals through cohoes NY
add start date for Champlain Canal
complete champlain canal from Waterford to section previously mapped by Natfoot
add section of old Champlain canal still visible in modern imagery
add locks to Enlarged Erie Canal in Cohoes NY
improve, old Erie and originial Champlain
add section of old Champlain canal still visible in modern imagery
correct erie canal through cohoes to include lock identified by ruins next to NY 787
add erie canal segments to relations, extend original erie canal through cohoes
complete first Croton aqueduct between Yonkers and Highbridge
complete Erie Canal between Watervliet (West Troy) and Albany
extend erie canal in Watervliet/Cohoes/Green Island area
extend original Erie Canal between Albany and Watervilet