The latter two counties had settlements of Friends and abolitionists. The slaves learned who their friends were in that part of the Free State; and it was as natural for those aspiring to liberty to move in that direction as for the waters of brooks to move toward larger streams."[366] [364] R. J. Hinton, _John Brown and His Men_, pp. 172, 173. [365] Harriet Tubman has told the author that she did not travel by the mountain route. In his book entitled _The Underground Railroad_ (p. 37), Mr. R. C. Smedley illustrates the value of the Alleghanies to the slaves of the regions through which they extend: "William and Phœbe Wright resided during their entire lives in a very old settlement of Friends, near the southern slope of South Mountain, a spur of the Alleghanies, which extends into Tennessee. This location placed them directly in the way to render great and valuable aid to fugitives, as hundreds, guided by that mountain range northward, came into Pennsylvania, and were directed to their home." [366] _Underground Railroad_, p. 36. Along the southern margin of the free states began those well-defined trails or channels that have lent themselves to representation upon the large map given herewith. In dealing with the tracings shown upon this map it will be best to consider the territory as divided into three regions, the first comprising the states of Pennsylvania, New Jersey and New York; the second, the New England states; and the third, the five states created out of the Northwest Territory. This arrangement will, perhaps, admit of the introduction of some system into the discussion of what might otherwise prove a complicated subject.