CYCLES OF EROSION IN PENNSYLVANIA 551 
the peneplain is here named the Honeybrook.’ It is not claimed 
that this plain has been traced throughout the Appalachian high- 
lands division, but in the Piedmont province of Pennsylvania it 
! 
Fic. 11.—Honeybrook peneplain below the Schooley, Boyertown quadrangle. 
The upland in the distance represents the Schooley peneplain, altitude 1,000 feet, and 
that in the middle distance, altitude 800 feet, the Honeybrook peneplain, as seen from 
a point one-fourth mile southwest of Shanesville, looking north 15° west. 
Fic. 12.—Water gap in a ridge whose summit is a remnant of the Honeybrook 
peneplain, Boyertown quadrangle. Upland in background, altitude 1,000 feet, 
represents the Schooley peneplain. Summit of ridge 800 feet and stream in the water 
gap, 440 feet. View from a point one-fourth mile southwest of Shanesville, looking 
north 45° west. 
seems to represent a distinct erosion level between the Schooley 
and Harrisburg. The Honeybrook peneplain has been completely 
1 The Schooley peneplain was traced from Pennsylvania to the Potomac Valley 
in Maryland to surfaces (Green Ridges) which have been ascribed to the Weverton 
peneplain (Maryland Geol. Survey, Vol. VI [1906], pp. 87-88). Elsewhere in the 
central Piedmont of Pennsylvania the Weverton as defined corresponds to a lower 
peneplain than the Schooley. A new name has therefore been introduced for a 
redefined Weverton. 
