from 12 to 18 inches, the type is fairly productive, and its
productiveness is generally proportional to the depth of the soil.

The local name for the Iredell clay loam is "wax land," from the waxy
nature of the subsoil, or "black-oak land," from the timber growth. A
few small, isolated areas of this soil occur in the intermediate
valley of the Catoctin Belt, and here the texture is much the same as
that described above; but the soil usually consists of from 6 to 10
inches of a drab or brown loam, underlain by a heavy mottled yellow
and drab silty clay. This phase has few stones on the surface or in
the soil. The local names for this phase are "cold, sour land" and
"white clay."

The greater part of the Iredell clay loam occurs in the southern or
southeastern corner of the County and occupies one large,
irregular-shaped but generally connected area, extending from
Leesburg, in a southeasterly and southerly direction along Goose Creek
to the southern boundary of the County, the most typical development
of the soil being at Waxpool. The phase already described occurs in
small, disconnected areas, usually quite far apart, the general
relative direction of these areas being northeast and southwest. They
all lie in the intermediate valley of the Catoctin Belt, and are
usually near the foot of the Blue Ridge or Short Hills. The most
typical development of this phase occurs just southeast of Bluemont.

Where rolling and sloping the surface drainage is good, the water
passing rapidly from the surface into the numerous small streams
flowing into Goose Creek, which is the main drainage way of this type.
In the low, flat lands the water stands or flows very slowly from the
surface. Owing to the impervious nature of the clay subsoil,