In 1734, Salzburgers had been located above Savannah, and within seven years some twelve hundred German Protestants were dwelling on the Georgia frontier; while a settlement of Scotch Highlanders at Darien, near the mouth of the Altamaha, protected the southern frontier. At Augusta, an Indian trading fort (1735), whence the dealers in peltry visited the Cherokee, completed the familiar picture of frontier advance.[98:1] We have now hastily surveyed the movement of the frontier of settlement westward from the lowlands, in the later years of the seventeenth and early part of the eighteenth century. There is much that is common in the whole line of advance. The original settlers engross the desirable lands of the older area. Indented servants and new-comers pass to the frontier seeking a place to locate their headrights, or plant new towns. Adventurous and speculative wealthy planters acquire large holdings in the new areas, and bring over settlers to satisfy the requirements of seating and cultivating their extensive grants, thus building up a yeomanry of small landholders side by side with the holders of large estates. The most far-sighted of the new-comers follow the example of the planters, and petition for increasing extensive grants. Meanwhile, pioneers like Abraham Wood, himself once an indented servant, and gentlemen like Col. William Byrd--prosecuting the Indian trade from their posts at the "heads" of the rivers, and combining frontier protection, exploring, and surveying--make known the more distant fertile soils of the Piedmont. Already in the first part of the eighteenth century, the frontier population tended to be a rude democracy, with a large representation of Scotch-Irish, Germans, Welsh, and Huguenot French settlers, holding religious faiths unlike that of the followers of the established church in the lowlands. The movement of slaves into the region was unimportant, but not unknown. The Virginia Valley was practically unsettled in 1730, as was much of Virginia's Piedmont area and all the Piedmont area of the Carolinas. The significance of the movement of settlers from the North into this vacant Valley and Piedmont, behind the area occupied by expansion from the coast is, that it was geographically separated from the westward movement from the coast, and that it was sufficient in volume to recruit the democratic forces and postpone for a long time the process of social assimilation to the type of the lowlands.