| Y & W Mining Co |
MO |
| Yaak Mining & Power Co |
ID |
| Yaba Copper Co |
AZ |
| Yak Mines Co |
CO |
| Yak Mining Co Inc |
OR |
| Yak Mining Milling & Tun Co |
CO |
| Yakima Badger Mining Co |
OR |
| Yakima Golden Gate Mining Co |
OR |
| Yakima Mohawk Mining Co |
CA |
| Yakima-Shoshone Mining Co |
ID |
| Yale Mining Co |
CO |
| Yale Mining Co |
MO |
| Yalokom Mining Co Inc |
WA |
| Yancy Hill Mining Co |
MO |
| Yankee Boy Mining Co |
WA |
| Yankee Cove Mining Co Inc |
AK |
| Yankee Fork Gold Mines Inc |
WA |
| Yankee Girl Mining Co |
ID |
| Yankee Gold Corp |
ID |
| Yankee Hill Mining Corp |
CA |
| Yankee John Development Co |
CA |
| Yankee Mines Co |
UT |
| Yankee-Polaris Lsng & Development Co |
ID |
| Yaqui Jack Mining Co |
ID |
| Yarnell Mining Co |
AZ |
| Yavapai Consolidated Mining Co |
AZ |
| Yavapai Gold Mining Co Ltd |
CA |
| Yavapai Mercury Mining Co |
AZ |
| Yavapai Onyx Mining Co |
AZ |
| Yavapai Prosptng & Development Co |
AZ |
| Yavapai Silver Co |
AZ |
| Yellow Aster Mine |
CA |
| Yellow Aster Mining & Milling Co |
CA |
| Yellow Aster Mining Co |
CA |
| Yellow Beauty Mining Co |
AZ |
| Yellow Bird Mining Co |
CO |
| Yellow Bird Silver Mining Co |
AZ |
| Yellow Boy Mining Co |
OR |
| Yellow Cat Mining |
NV |
| Yellow Circle Mining Co |
UT |
| Yellow Dog Extn Mining Co |
CA |
| Yellow Gold Mines Co |
NV |
| Yellow Gold Placer Co |
ID |
| Yellow Jacket Mines Co |
CO |
| Yellow Jacket Mining Co |
CO |
| Yellow King Mining Co |
CA |
| Yellow Metal Mining Co |
CA |
| Yellow Metal Mining Co |
OR |
| Yellow Pine Development Co Ltd |
ID |
| Yellow Pine Extn Co |
NV |
| Yellow Pine Synd |
CA |
| Yellow Pine Synd |
ID |
| Yellow Ping Lease |
NV |
| Yellow Rose Mining Co |
AR |
| Yellow Tiger Consolidated Mining Co |
NV |
| Yellowhorn Mining Co |
OR |
| Yellowstone & Western Mining Co |
MT |
| Yellowstone Dredging Co |
MT |
| Yellowstone Gold Mines Inc |
MT |
| Yellowstone Gold Mining Co |
MT |
| Yellowstone Mine |
CA |
| Yellowstone Mining Corp |
MT |
| Yerington Consolidated Copper Co |
NV |
| Yerington Malachite Copper Co |
NV |
| Yerington Mines & Exploration Co |
NV |
| Yerington Mountain Copper Co |
NV |
| Yerrington Mountain Mining Co |
NV |
| Ymir & Coeur d'Alene Mining Co |
ID |
| Yogo Lead & Zinc Co |
MT |
| Yolande Mining Co |
ID |
| Yoquivo Mining & Red Corp |
DE |
| York Gold Mining Co |
SC |
| York Mining Co |
UT |
| Yosemite Dredging & Mining Co |
CA |
| Yosemite National Gold Mines Corp |
CA |
| Yost Gold Mines Corp |
CO |
| You Bet Mining Co |
CA |
| You Like Lsng Assoc |
ID |
| Young America Mining Co |
CA |
| Young Bros Mining Co |
CA |
| Young Placers Inc |
OR |
| Youngstown-Gilpin Mining Co |
CO |
| YP Mining Co |
AZ |
| Yreka Gold & Copper Co |
AZ |
| Yreka Mining Co |
ID |
| Yuba Associated Engineers Inc |
CA |
| Yuba Development Co |
CA |
| Yuba Development Co |
CA |
| Yuba Dredging Co |
MT |
| Yuba Gold Corp |
NV |
| Yuba Gold Mining Co |
CA |
| Yuba Gold Recovery Synd |
CA |
| Yuba Milling & Mining Co |
ID |
| Yuba River Mines Inc |
CA |
| Yuba River Mining Co |
CA |
| Yuba River Power Co |
CA |
| Yuba Sierra Development Co |
CA |
| Yucca Gold Mining Co |
CA |
| Yucca Metals Co |
CA |
| Yucca Tungsten Mining Co |
AZ |
| Yukon Alluvial Golds Ltd |
AK |
| Yukon Gold Mining Co |
CO |
| Yukon Gold Mining Corp |
DE |
| Yuma Consolidated Mining Co |
AZ |
| Yuma Gold Fields Inc |
AZ |
| Yuma Mining Co |
AZ |
| Yuma Silver-Lead Mining Co |
AZ |
