00830cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040002100111043001200132050002200144051002600166100003300192245006600225260004300291300005000334490004600384500007300430650002100503650003500524999001700559gs 04000162 DLC20260227111259.0790205s1904    dcuabf       f001 0 eng    ags 04000162   a(OCoLC)4617420  aDLCcICharEdDLC  an-us-ak00aQE75b.B9 no. 236  aTN423.A7bW9cCopy 2.1 aWright, Charles Will,d1879-04aThe Porcupine placer district, Alaska,cby Charles W. Wright.  aWashington,bGovt. Print. Off.,c1904.  a35, v p.billus., 10 pl. (incl. maps)c24 cm.0 aU.S. Geological survey. Bulletinvno. 236  aSubject series: A, Economic geology, 37; B, Discriptive geology, 42. 0aGeologyzAlaska. 0aGold mines and miningzAlaska.  c24112d24112