The Journal of Samuel Maclay, while surveying the west branch of the Susquehanna, the Sinnemahoning and the Allegheny Rivers, in 1790 is the full title. On April 9, 1790, Samuel Maclay, Timothy Matlock and John Adlum were commissioned by the Supreme Executive Council of Pennsylvania to examine the headwaters of the Susquehanna River and explore the streams of the new purchase of Indian land, the Northwestern section of Pennsylvania, lately purchased from the Indians. This book is the story of the incredible journey in the spring and summer of 1790.

ISBN 1-889037-17-6
Soft cover