Fork River in Boston, the South Fork of the Licking River at Cynthiana, and
the Licking River at Blue Licks Spring and Falmouth. It brought the most
serious flooding in Ohio along Brush Creek and the Scioto and Great Miami
River, at the highest main stem levels for more than 30 years in Ohio
The Ordovician System of Ohio is of interest to geologists for
being the most famous of the state's Paleozoic rock systems (Hansen 2003).
The alternating shales and limestones in the upper part of the system
consist of an incredible variety and abundance of well-preserved fossils.
These fossils, in turn, define life of this geologic period, and the rocks
of the region, the Cincinnati Series, serve as the North American Upper
Ordovician standard (Hansen). These Ordovician rocks in the subsurface in
Northwestern Ohio also became the source of the first giant oil and gas
Ohio's Ordovician rocks today do not have much economic appeal in
comparison to those other geological systems in the state, although in the
last century, some lime stones of the Upper Ordovician variety in
Southwestern Ohio were quarried for building stone and related uses. Lime
stones of the Point Pleasant Formation were quarried in many areas,
including Cincinnati and Point Pleasant, where they were exposed along the
Ohio River, and were known to quarrymen as "River Quarry Beds." The
Trenton Lime Stone was once the most important oil-bearing unit in the
entire country and the first giant oil field discovered in the Continent.
After commercial quantities of oil and gas were discovered in 1884 in
northwestern Ohio in 1884, vigorous drilling followed in a 185-mile-long
area stretching from Toledo to Indianapolis. This l
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