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Ohio Black Diamonds EarthCache

Hidden : 4/15/2009
Difficulty:
1 out of 5
Terrain:
1.5 out of 5

Size: Size:   not chosen (not chosen)

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Geocache Description:

The above listed coordinates should lead you to an Ohio Historical Marker outside of Millfield, Ohio
In 1930 an incident occurred just outside this small Ohio Coal mining town that made national and international headlines.

On a fateful November day an explosion at the Sunday Creek Coal Company Mine #6 would become the deadliest mine disaster to ever occur in Ohio.

The explosion was a result of an accumulation of methane gas ignited by a short circuit between the broken trolley wire and rail caused the explosion
82 two people died in the explosion. Those that lost their lives in the explosion included ironically, mine officials who were touring the mine to inspect safety equipment.

The mine located near Sunday Creek mined coal from the Hocking Valley Coalfield.


According to Roadside Geology of Ohio by Mark J. Camp
“East of the Hocking Valley up tributaries like Federal, Monday, and Sunday Creeks, thick seams of coal brought a coal boom to the area that continues still. This region of coal became known as the Hocking Valley Coalfield, and it stretched from Logan, Nelsonville, and Athens east to Shawnee, Corning, and Glouster by the 1880’s and 1890’s. The Middle Kittanning Coal, averaging 5 to 7 feet of marketable coal, was the main seam that was mined, but miners also dug into Lower Kittanning and Lower Freeport seams. Starting in the late 1870’s most of the coal went to fire iron smelters.
The largest section of this coalfield opened in late 1880 in the Sunday Creek valley, which runs northeast of Beaumont, upon completion of the Ohio Central Railway.”

Coal in the Hocking Valley is believed to be formed from the plant remains of vast swampy forests that covered the area roughly 318 million years ago to 290 million years ago, during the late Carboniferous Period, locally identified as the Pennsylvanian epoch.


Coal is formed when the remains of dead plants are covered with water, mud or other materials before the mechanisms of decomposition and decay begin. Over milliona of years, this organic material is compressed by the pressure of additional materials deposited over top of these remains. The heat and pressure transforms the chemical makeup of the materials into a rocklike fuel. Coal in the Hocking Valley contains traces of natural sulfur. Sulfur released from mined coal can react with certain other natural materials to produce acid.

Abandoned coal mines in the area can often be identified by large areas of waste products called tailings, located near the site. Tailings are fine materials of broken rock, coal dust and other waste materials not marketable. Coal tailings in this area often produce acidic runoff that prevents the growth of vegetation. At this site you can identify the tailings by the area of bottomland showing some debris with little vegetation growing.

The numerous coal mining towns in the region are often referred to as “Black Diamonds”

Sigmund Kozma, who was 16 at the time he survived the explosion and the last living survivor of the Millfield Mine disaster, passed away on January 3, 2009.

In order to successfully log this earthcache find you must complete the following requirements;
1) Take an elevation reading at the above listed coordinates and send me the answer in an e-mail.
2) In the e-mail you send for requirement 1, also tell me how many survivors were found after the explosion and how far the survivors were located from the main shaft.
3) In your find log you must upload a picture of you and your gps with the power plant chimney clearly visable in the background of your picture. If you are caching solo or a little shy, I will gladly accept a handshot of your gps and the chimney. Please do not enter the property (past the gate).
4) These mine shafts at Millfield were extensive. Calculate the tonnage of coal removed from the portion of the mine where the survivors were found. (Distance measurement from question 2 in feet x 7 feet thick x 10 feet wide x 84lbs per cu. ft/2000lbs = N tons.
5) Estimate the length and the width of the tailings field from your vantage point at the OHS marker.( Area from road south to base of hill showing little vegetation )
6) From the waypoint listed use your gps to mark a waypoint in order to estimate the distance to the entrance of the mine (south of the coordintes at the base of the hill across Jackson Run Creek.
All the above requirements can be fulfilled at the public parking spot at the OHS marker. Again, please do not enter the property.


Additional Hints (No hints available.)