Three or four detached hills, rising to an elevation of 150 or 200
feet above the adjacent country, are the only ones of consequence met
with in this section.


COMPARATIVE ALTITUDES.

The hilly character of Loudoun is clearly shown by the following
exhibit of the elevation of points and places above tide-water. The
variations of altitude noted in this schedule are based upon
conflicting estimates and distinct measurements made at two or more
points within a given circumference and slightly removed one from the
other.

Feet.
Sterling 415
Ashburn 320
Leesburg 321 to 337
Clarke's Gap 578 to 634
Hamilton 454 to 521
Purcellville 546 to 553
Round Hill 558
Bluemont 680 to 730
Snicker's Gap 1,085
Neersville 626
Hillsborough 550
Waterford 360
Mount Gilead 600
Oatlands 270