There are some topo maps on-line with Bland Hills - try this link:http://mapserver.mytopo.com/homepage/index.cfm?lat=38.710060...
If the long link doesn't work, try just the homepage link. You want to enter 38 42 14 N and 79 26 25 W or scroll down to Bland Hills if the link takes you to the Onego quadrangle.
When you get there, notice, to the east that there is gray, broken line indicating the ridge line. The long series of eastern lines in Thomas Bland's 296a, as well as the two humungous grants which shared those lines, mention running with a ridge line several times. Although ridge line could apply to lower ridges, the peak ridge line would make a natural divider for the large grants (as Harper's Run and Root's Gap run were the natural dividers for the north and south lines of McCullough's exclusionary grant for the greater Germany Valley area.)