680 GEOLOGY OF OHIO. 
About twenty feet above this, is the Great Vein coal, which is here 
finely developed, and, with the iron ores and limestones, constitutes the 
great mineral wealth of this region. 
This coal is mined by the New York and Ohio Coal Company, by drift- 
ing, near the north-west corner of Section 4, York township, where the 
coal is nine feet thick, and where large quantities have been mined and 
shipped. The section is here, from above: 
FT. 
Sandstone exposed... fesce ss ee eae aye tera ree fa 20 
Shia ere eee as a ia Sa ie ep cen a oe Se ET ga 2) et Sn ee NDA 6 
Coals in three benches... css Ne ALS LY ee UR PM LE 9 
_ The sandstone approaches abnormally near to the coal, and northward 
it has, in places, cut away all of the shale and the upper part of the coal. 
Along the valley of Snow Fork, from the north line of Ward township 
to the north line of Section 4, the coal is well exposed, generally a little 
above drainage, and is of remarkable excellence. 
At the Cawthorn bank, on Monday Creek, above its Eee Hion with 
Snow Fork, the following measurements were taken : 
FT. IN 
toy dk: Cee et Seer a SPR eae RN Ee ee en ee Ae A lg 15* bi 
COA se Bos ocieds We sees ces cae wtlesecss ars cele ericecewen earn wena. 4 to 6 a 
Shral@y. he sce tes co Ea crane a Staion eee a 3 
Coalrcctet cee so bee ee ee seo moatoee sects We ea ole Smee letie Sas ere so 3 tha) 
Shalew:tecteias Osho occ. c cits itaete oe eucets atr ah cre renee eee antenna ae 14 
Coal speed Sec hee oe uaa Sas Soe, errr reparation pernrays .. 22 to 24 
The coal is of good quality, with little sulphur, and in all respects 
much like that of Shawnee and Straitsville. 
A full section of the rock strata, exposed at this point, is as follows: 
FT. 
LGIRUEATOTE) SINAN soo o55000 0000 929000 S900 cadaes canac9 S95509 D000 S60605 50 
Crinoidalslimestone: sash ie ee nee aves eee SE SS es 3-4 
Shalyvsandstone 22 0 acct octteeess Sais maciiee come seer ae cseet eet eceke 50 
Coal/(reported thickness) ~.2's..\. 32.0255 es cacnic sess se selec eoele ese 3 
Notiexposed: ovbench invhill):.e22 eee ee eee eer eee ee tee aera 20 
Sandstoneeiuoc ee a. oF. ees els ciwiais sete aia atapee ee atete wre tieerele Metatetatntets 70 
CalcarcousMronyore cis 21 sain cioe co oe ere alee paper arsielicte aya orep ale tore tenets are 5 
Herruginous shaleyaceccmeceienccecisicy ia ciselsoe ete nael csi eae teeta ieee eter etaete 20: 
Drabilimestone, wathnronvoressa-s see oes eee eee eee eee ee eee uaa oes cic 4 
Shalyisandstonesandbyellowsshaleess eee eeee eee es oeeeeeereeer lace 30 
Coal’. occ 2 chee Petes tn se aie cae a otaet beret are eee tee eee eed teeecer nar ace 4 
HOELrucinous Shale: sec cc tecinn spears oe eee eee ae ee Cee eee eee ac sae ci: 30 
Coal, Great Vein, 22.25.72 e sooo ok eee Se eee eee eon aisic a ciais 9 
Bluejshale; with iron ore, Sec ss eee as see eee cekeeeiteeectecele names 8 
*Blue shale, with nodules of iron ore, eight feet. 
