450 



Goldthwait — Old Graded Upland, on the 



as the "Alpine Garden." The semicircular headwalls of 

 Tnckerman's and Huntington's Ravines have been cut far 

 back into this portion of the lawn ; but its gentle eastward 

 slope is sufficiently well preserved to convey the impression of 

 a nearly level upland which was once of great extent. See 

 map (figure 2), and photograph (figure 3). Around and 

 beyond Nelson's Crag, which rises as a low monadnock above 

 the lawn, the graded slope continues, passing down the crest 



Fig. 3. 



Fig. 3. View on the "Alpine Garden'' looking 

 Huntington's Ravine. By E. H. Lorenz. 



over the headwall of 



of Chandler Ridge for a mile and a half to an abrupt shoulder 

 at 4000 feet, near the Halfway House. Here the end of the 

 spur was trimmed away by glaciation during the excavation of 

 the Great Gulf, the greatest of the White Mountain cirques. 

 The carriage road takes advantage of this ancient graded sur- 

 face to accomplish the last half of the eight-mile ascent from 

 the Glen to the summit of Mount Washington. On the 

 north side of Mount Washington the head of the Great Gulf 

 cirque was eaten back beyond the limit of the lawn and up 

 into the slope of the cone itself. On the northeast side of 

 Mount Clay, however, another flat-topped spur appears 



