NOBLE COUNTY. 517 
data, that the fossiliferous limestone is the equivalent of the Cambridge 
limestone, which, in the vicinity of Cambridge, is about one hundred 
and twenty-five feet above the Cambridge coal. The existence of the 
Cambridge seam at Ava is a fact of the highest importance. It can be 
easily reached by shafts. From this point this very valuable seam will 
doubtless be found to extend under all the high ground to the north, 
which divides the waters of Duck Creek from those of Wills Creek. 
This gives an extensive coal field, bordering the railroad, and tributary 
to it, reaching from Ava to Cambridge. 
BUFFALO TOWNSHIP. 
This township borders Guernsey county, and has its principal drain- 
age northward by means of branches of Wills Creek. Its south-western — 
portion is upon the southern slope of the divide, and is watered by the 
head branches of the West Fork of Duck Creek. The Marietta, Pitts- 
burgh, and Cincinnati Railroad passes through the divide between the 
two streams by means of a tunnel. The hills in Buffalo township are 
probably not high enough to take the Cumberland seam of coal, and in 
this region the Pomeroy seam has a slight development. The-soil of the 
township is rich from the limestone in the hills. At the “ Notch,” where 
the railroad leaves the Duck Creek waters, the following strata were 
seen : 
Ft. In. 
1. Sandstone (not measured). 
2. Limestone ......... eae vis sudbd8 bob abadds SOHGURe AB ISBBEdeal Haran AdanBonucedT Sacoee 2 0 
OP NOLESCE Men uote rec pein tae ienbae Vonmae eee nL eae eestelaecocoetew sa tecions device ys 20 0 
4, Limestone ....... 0 10 
ESMTTIN(O GEC G Toten ee Ue rote aacenre eG neo aa s sakcaced cu date Shaneven sabe ou semoeteneeve 6 0 
CoN Gilani CSLOME  wascersccecs se sesei cease teclsoueld nbeckesasineceedeteauess 99909 680 5 0 
TEMNO CSCC Irena, el ecai Sal) SHORE EEO Berea ROMA Pey EEE ae uaa eee 25 0 
8. Blue fossiliferous shale, with nodules of siderite Ore.............c0ec0.. 20 O 
OPPO LP SCOT Re raeenple: Satie Rno te Ree ae etait suse re ONSEN LL clvieal oases scauealeces 2 6 
LOMB hireb hire clay sou ssn eer insiaweasluataceacuiesnasesadcaecins cddajuseeddlevensuise sees 10 0 
11. Ferruginous limestone, fossiliferous (Cambridge limestone) ......... a) 
Bed of stream. (Map XII., No. 23.) 
I have no doubt that the limestone at the bottom of this section is the 
equivalent of the Cambridge limestone and of the fossiliferous limestone 
at Ava Station. This would give us the Cambridge seam of coal at a 
depth of about one hundred and twenty-five feet below the valley at the 
“Notch.” At Ava Station the boring revealed the Cambridge coal, six 
feet. six inches thick, one hundred and twenty-five feet below the lime- 
stone. We may justly infer that this fine seam extends under Buffalo 
township. This will give great value to the lands bordering the railroad. 
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