Ice Movement in the Vicinity of New York, 1911
A map from 1911 of the vicinity of New York City showing the extent of the Manhattan prong of the ice–sheet that covered the area during the last glacial period (Wisconsin), keyed to show the direction of the ice flow and terminal moraines in t...

Western New York, 1911
A map from 1911 showing the distribution of morainal deposits and direction of ice movement in western New York during the last glacial period. ...

Physiographic Belts in Central New York, 1911
A map from 1911 of the Finger Lakes region of central New York showing the physiographic belts of glacial activity. The map shows the belt of drumlins and filled valleys, the belt of open valleys, and the valleys of the head moraine. The heavy dotted...

Portion of New York, 1911
A map of the upper portion of New York showing glacial fill types: 1, Ordovician; 2-5, Silurian; 6-13, Devonian; 14, Mississippian....

Glacial Lake Succession in New York State, 1911
A map from 1911 showing the glacial lake succession of the Ontarian Ice Lobe in New York state, Lake Newberry. Note overflow southward into the Susquehanna....

Glacial Lake Succession in New York State, 1911
A map from 1911 showing the glacial lake succession of the Ontarian Ice Lobe in New York state, Lake Hall. Overflow at this stage was westward to the Mississippi instead of southward to the Susquehanna. Elevations from 1000 feet on east to 900 feet o...

Ice-border Drainage, 1911
A map from 1911 showing the abandoned channels and deltas of a part of the ice–border drainage between Leroy and Fishers, New York after the last glacial period. The map is keyed to show the glacial stream channels, deltas, and the wave works o...

Roc Drumlins, 1911
A map from 1911 from the Baldwinsville quadrangle showing the topographic feature of roc drumlins or drumloids. The drumlin-shaped forms in the upper part are developed on shale. Roc drumlins are distinct from the more common type of drumlin in that ...

Cherry Creek Quadrangle, 1911
A contour map of part of the Cherry Creek quadrangle in the vicinity of Charlotte Center, showing typical non–glaciated topography in central New York....

Ovid Quadrangle, 1911
A contour map from 1911 of part of the Ovid Quadrangle in the vicinity of Lodi, showing typical till–covered topography in central New York.. ...