768 FLORAL ZONES OF THE POTTSVILLE FORMATION. 



It will bo shown in this report that the exploitations and provings on 

 which was leased the conclusion that the Lykens coals were of inferior 

 quality or worthless in the Dauphin Basin were, in fact, contined to the 

 softer and inferior coals of the Productive Coal Measures, in the interior 

 of the basin. These coals are not in the Pottsville formation. All the 

 coals mapped by the State geologist as ''Lykens" throughout the 

 greater part of the southern limb of that basin, including practically 

 all the early developments east of the Big Flats, arc, in fact, within 

 the Productive Coal Measures. The entire Pottsville formation, with 

 its scarcely prospected Lykens coals, not only lies to the south of the 

 supposed approximate boundary of the "lowest Lykens coal," but a 

 large portion of its steeph^ inclined terranes, including the lowest 

 Lykens coals, outcrops for nearh' a score of miles along a zone rep- 

 resented as red shale on the mine sheets. 



NOMENCLATURE OF THE COALS. 



It is uncertain how many of the Lykens (Pottsville) coals are at one 

 place or anothei- worka])le, since some of them are evidently too thin 

 for protitable mining in each of the mine sections. Certain of the 

 sections may show as many as a dozen or more thin coals or coaly 

 partings, but it is not pro))able that more than eight or nine at most 

 I are anywhere worked, and it is only in a few cases that as many as 

 five coals in this formation can be productively worked at one locality. 

 Usuallv not more than three are profitably mined at one point. 



The number of the principal workable coals and their relative posi- 

 tions are best revealed at the Lincoln mines and in the Brookside- 

 Lykens district, which, is essentially continuous to the westward of 

 the former. At the Lincoln mines, Avhere the upper Lyk(>ns coals 

 are best displayed, six coals are or have been worked. The colunmar 

 sections, earlier mine maps, and profiles of these mines are shown in 

 mine sheets xvii to xxi. Atlas Southern Anthracite Field, Pt. Ill; 

 columnar-section sheets vii and xi. Atlas Southern Anthracite Field, 

 Pt. IV; and cross-section sheets xvii to xxi. Atlas Southern Anthracite 

 Field, Pt. V. In several of the sections the Lykens No. 1 coal is 

 shown at about 210 feet below the coal identified by the State geol- 

 ogist as the Buck ^Mountain l)ed, as at Good Spring, or at about 

 250 feet below a bed presumablv the same, as at the Lincoln mine. 

 (See PI. CLXXXIII.) 



Lvkcns coid No. li, formerly worked at tht^- New Lincoln mine, is 

 platted at approximately 240 feet below Lykens coal No. 1; while 

 Lykens coal No 2 in the same mine is but 78 feet below the lattei- in tiie 

 second lift tunnel. At this ])()int Lykens coal No. 3, which at other 

 points may di\ crgi' asmuch as :^.(> feet ormon' from No. 2, is sepai'ated 

 from the lattx'r by only 3 inches of dirt. Lykens coal No. 4, locally 

 known as "White's bed," is about 245 feet below No. 3 at Lincoln. 

 Lvkens coal No. 5, th«> "Lykens Vallev" bed, or. as it is also locally 



