Relief shown by hachures.
Includes references.
Scale ca. 1:31,680.
Tredyffrin is the modern day Howellville.
Slide in case file
Phillips, P.L. Maps p. 856
Title
British camp at Trudruffrin from the 18th. to the 21st. of September 1777 : with the attack made by Major General Grey against the rebels near White Horse Tavern on the 20th. of September
