A spring may be the result of karst topography where surface water
has infiltrated the Earth's surface (recharge area), becoming part
of the area groundwater. The groundwater then travels through a
network of cracks and fissures—openings ranging from
intergranular spaces to large caves. The water eventually emerges
from below the surface, in the form of a karst spring. The forcing
of the spring to the surface can be the result of a confined
aquifer in which the recharge area of the spring water table rests
at a higher elevation than that of the outlet.
The spring at the GZ is a result of the Ohio River Alluvium, and
is the best source of groundwater in the county. In the main
sections of the larger creek valleys, in some of the Ohio River
bottoms, and on broad ridges in a limited area south of the towns
of Skylight and Crestwood, the alluvium will produce enough water
for a domestic supply at depths of less than 100 feet.
In order to log this cache, please answer the following and
e-mail to me:
1. Notice the limestone rocks that have crowded the spring head.
Describe rocks and their composition.
2.Approximately how far from the spring head do you actually see
the first appearance of spring water. (This can vary from season to
season).
3. Approximate the width of the bank erosion in front of the
large pile of rocks at the spring head.
4. (optional) Take a photo of yourself or your GPS at the
site.