Charts. Great Lakes, Average times of opening of navigation at places on, with mean departure from average of yearly dates of close of ice season, compiled from report of Deep-Waterways Commission of 1896; chart 1695. Scale Flat.=3.4 in.
Publication Title:
Great Lakes, Average times of opening of navigation at places on, with mean departure from average of yearly dates of close of ice season, compiled from report of Deep-Waterways Commission of 1896; chart 1695. Scale Flat.=3.4 in.
Display Title:
Charts. Great Lakes, Average times of opening of navigation at places on, with mean departure from average of yearly dates of close of ice season, compiled from report of Deep-Waterways Commission of 1896; chart 1695. Scale Flat.=3.4 in.
Corporate Agency Authors:
Hydrographic Office, Navigation Bureau, and Navy Department