13C 



<if strcMiiis liMVc lii'('!i taken unilcr.m-ciiiml aiid iliNcrlcd Iroiii tlirir aiiciiMit 

 clianiH'ls to lU'W and alit'ii (riitk-ts in jii't'Jit spriii.us on tho eastern and 

 western bonU'is of the area'. 



Kemarkalile exaniiiles of this ai'e to lie seen in tlie nnder;xround 

 (•ai't'i''e of till' iieadwatei's of Indian Creek in Monroe Connty. l)y Salt and 

 liicliiand creel^s. In the case of the fanior.s I/ist Kix'er. in <)i'an.ue ( 'omity, 

 S(]nie lwel\-e miles of the sni'lace elianiiel have Ix-en abandoned in favor 

 of a sniptei'fanean course. 



The depth to whicji IIicm' nndcrt^'ronnd cliannels jienetrate tlie roek is_ 

 limited onl\' hy the thickness of the limesione formation and its eleva- 

 tion above the main lines of drainaLte-'. .Xear the (Miio Kiver. where tho 

 iiiain draina.ire is deeply intrenched into the .Mitchell plain, tho roek is 

 <a\ernons to a depth of ."Kid feet'. In the northern portion of the area, 

 \\here the main streams have not cut so dee]!, and where also the linie- 

 Ktoiie formations are thinner, the nnder^'round openinLrs in the roek do 

 itot so so deep, bni even in this ]iart of the area the limestoiu' ma.v be 

 cavernous to depth of more than lIMl feet'. 



Nor is the eavernoiis character of the region confined to the hii.iier 

 portions, well above drainaire. In all bnt the deeper valleys, the valley- 

 tloor itself may be riddled with solution holes and niider.iirmind chainiels. 

 This is exemplified in the valley of French Lick ("reek. The extremely 

 free nnder.irronnd ci nnnnnicatioii of the waters underneath this valley 

 has been rejieatedly iiroven by the interfereuee of wells in the valle.v with 

 the flow of the mineral sjiriiiirs. The testimony taken in the case of the 

 French I.ick Spi-in^s Co. vs. Howard et al. showed this so cimclusively 

 that it may not be oiit of place lo review it at this point. 



'Bi'c'dp, loc. (it. 



=Cnmings, On llir Wc-illiri-iii;;- of llir Stilicni-lMinh'rriiiis I.inu'sidiics ol" Sonilimi 

 Indiana, I'roc. Iii(f .\<miI. Sci. for i;tn."). iip. s.'iiou. 



■■'Ori'cnc, Cav(>H niid Cave I'dniial imis of ilic .\Iilclnll Linifslimc. Pi-oc. Iiid. 

 Acad. Sci. for 1008. p. tnc. 



■■.Most people di) ndt realize the deplli 1(1 which li;iiesl(iiie I'oi-inatioii.s may lu- 

 alTecled hy solulicii. In the reiiiarU.'ihh^ (i-ealise hy .Marlel mi the <'avo rejiiou.*! of 

 lOnroix- (T.cs .\hline-ii. (Iiei-i> ai-e descTihed lu.-iny well-lil<e solution lioles that tro 

 almost straight down iulo the rcxk lo depths nl c.iMi feet or more. Into many of 

 Hiosp Alarfel actually tiesi ended hy 'iie.-nis of ni;ie ladders, and exphiriMl ihe lavi's 

 at the ))o||<)ni. 'I'lie famous region of tlie Karst. on the eastern .side of the .\dri- 

 alic, has lieen literally lioneycondied with eaves and sinlvholcs to fjrcat depths. A 

 more extraordinary region could scarcely lie imagini^d. The Uocca, in .Vustrla, 

 flows in a suhterranean channel, wliicli is In places more than 1,000 feet boucafli 

 the surfaee. 



J 



