CONTENTS. XIX 



Page. 

 Irou Hill group of mines — Continued. 



Iron Hill — Continued. 



Mine workings 339 



Rock and Dome 339 



La Plata, Stone, and A. Y 390 



Lime and Smuggler 391 



Sonth Bull's Eye and Silver Cord Combination ,392 



Irou mine proper 394 



Relatiou of Iron fault to ore bodies 399 



North Iron Hill 401 



General geological structure 401 



Iron fault — Adelaide fault — Rock formations 402 



Ore deposits 404 



Mine workiuga 405 



Argentine — Argentine tunnel 405 



Adelaide 406 



Double Decker 408 



Chapter III. 



Carbonate Hill guoup op mines 409 



General structure 4O9 



Rock formations 409 



Carbonate fault 410 



Pendery fault — Morning Star fault — Ore deposits • 411 



Southwest slope of Carbonate Hill , 412 



Southern group of mines 4I4 



Carbonate workings 416 



Carbonate incline 418 



Little Giant 424 



Yankee Doodle 425 



Area on top of hill — Area west of Carbonate fault 427 



Northern group of mines 409 



Crescent mine 43O 



Catalpa mine 43I 



Evening Star mine 433 



Morning Star mine 436 



Area west of Carbonate fault 439 



Lower Henriett and Waterloo 44O 



Morning Star and Forsaken 441 



Niles- Augusta and Wild Cat 443 



Lower Crescent 444 



Cn.\PTER IV. 



Fryek Hill group op mines 445 



General description 445 



Rock formations 447 



Gray Porphyry 447 



White Porphyry 448 



Weber quartzite — Blue Limestone 449 



Gaugue — Ore deposits 451 



Parting Quartzite — White Limestone — Lower Qnartzite 453- 



Explanation of Fryer Hill map 454 



Mine workings 455 



Chrysolite mine 455 



