ine

County

Notes

N. K. W. Gold Mining Company

Teller

Miscellaneous "N"

Nabob

Clear Creek

Nanawah Mine

Clear Creek

Miscellaneous "N"

Nancy Cleo

Chaffee

Nancy Group

Boulder

Naomi Ann

Rio Blanco

Miscellaneous "N"

Napoleon

Gunnison

Nare

Jefferson

Narrow

San Juan

Nasby

Ouray

Miscellaneous "N"

Nashville Mine

Gilpin

National #2

Boulder

Miscellaneous "N"

National Belle

Ouray

National Consolidated Mines Incorporated

Ouray

Miscellaneous "N"

National Group

Mineral

Miscellaneous "N"

National Liberty Mining & Reduction Company

Gunnison

Miscellaneous N

National Mine

Clear Creek

Miscellaneous "N"

National Treasure Mine

Summit

Miscellaneous "N"

National Tungsten Company

Boulder

Miscellaneous "N"

National Tunnel Mining & Milling Company

Gilpin

Miscellaneous "N"

Nations Treasure Mine

Boulder

Navajo

Custer

Miscellaneous "N"

Navajo

San Miguel

Miscellaneous "N"

Navajo Mine

Saguache

Navy Mine

Summit

Miscellaneous "N"

Neath Mine

Clear Creek

Needles Eye Tunnel

Gilpin

Miscellaneous "N"

Neglected Mine

Clear Creek

Neglected Mine

La Plata

Negro Infant

Lake

Miscellaneous "N"

Nellie and Laura Mine

San Miguel

Nellie B Claim

Lake

Miscellaneous "N"

Nellie B. Mine

Chaffee

Miscellaneous "N"

Nellie Bell Group

Gilpin

Miscellaneous "N"

Nellie Bly Shaft

Chaffee

Miscellaneous "N"

Nellie Creek

Hinsdale

Miscellaneous "N"

Nellie K. Mine

Teller

Miscellaneous "N"

Nellie Mine

San Miguel

Miscellaneous "N"

Nellie V Shaft

Teller

Nelson Mines

Boulder

Nelson Oro Mine

Gilpin

Miscellaneous "N"

Nelson Tunnel & Mining Company

Rio Grande

Miscellaneous "N"

Nemaha Tunnel

Custer

Nemeha Mine

Gilpin

Miscellaneous "N"

Neodosha Mine

Ouray

Neptune Mine

Clear Creek

Miscellaneous "N"

Nest Egg Mine

Teller

Nettie B. Mine

Clear Creek

Miscellaneous "N"

Nettie Mine

Boulder

Miscellaneous "N"

Nevada

San Miguel

Miscellaneous "N"

Nevada Mine

Ouray

Miscellaneous "N"

New Alps Consolidated Mining Company

Lake

New Boston Mine & Mill

Clear Creek

Miscellaneous "N"

New Century

Clear Creek

Miscellaneous "N"

New Clara Mining & Milling Company

Lake

Miscellaneous "N"

New Dawn

Dolores

Miscellaneous "N"

New Dawn Group

Clear Creek

Miscellaneous "N"

New Deal Mine

Routt

Miscellaneous "N"

New Deal Mine

Summit

Miscellaneous "N"

New Discovery

Chaffee

New Discovery

Lake

Miscellaneous "N"

New Discovery

Mineral

Miscellaneous "N"

New Dominion Mine

San Miguel

New Enterprise Mine

Boulder

Miscellaneous "N"

New Era

Summit

Miscellaneous "N"

New Era Mine

Clear Creek

New Extension Mine

Summit

New Girl Mine

Boulder

New Hope

Custer

New Hope

Larimer

Miscellaneous "N"

New Hope Mining Company

Lake

Miscellaneous "N"

New Hope Mining Company

Teller

Miscellaneous "N"

New Hope Tunnel

Clear Creek

Miscellaneous "N"

New Mammoth Mining & Milling Company

Lake

Miscellaneous "N"

New Mining & Land Company

Lake

Miscellaneous "N"

New Morning Gold Mining Company

Boulder

Miscellaneous "N"

New President Dump

Lake

New Prussian Mine

Boulder

Miscellaneous "N"

New Queen of the Hills

Mesa

Miscellaneous "N"

New Recruit

Summit

New Rival Mine

Boulder

New South Canon

Garfield

New Totalless Mining & Investment Company

Lake

Miscellaneous "N"

New Tunnel

Lake

New Uncle Sam

San Miguel

Miscellaneous "N"

New Verde

Mesa

New Wapiti Mining Company

Summit

Miscellaneous "W"

New Yok Mine

Summit

New York Mine

Boulder

Miscellaneous "N"

New York Mine

Mineral

New York Union Gold Mining Company

Boulder

Miscellaneous "N"

New Zealand Shaft

Teller

Miscellaneous "N"

Newark Mine

Park

Miscellaneous "N"

Newhouse Tunnel

Clear Creek

Miscellaneous "N"

Newlin Creek

Fremont

Newman Hill Project

Clear Creek

Miscellaneous "N"

Newman Tunnel

Pitkin

Newport & Providence

Gilpin

Newsboy Company

Ouray

Newton Tunnel

Teller

Miscellaneous "N"

Next President Mine

Gilpin

Miscellaneous "N"

Niagara Mine

Clear Creek

Nicholls Mine

Boulder

Miscellaneous "N"

Nicholson Lease

Lake

Miscellaneous "N"

Nielson & Larsen Mining Company

San Miguel

Miscellaneous "N"

Night Hawk Mine

Teller

Night Shade

Boulder

Miscellaneous "N"

Nightingale Mine

Teller

Nil #2

Montrose

Nil Desperandum Mines Company

Boulder

Nil Sine Numine

Boulder

Miscellaneous "N"

Nimrod Mine

Clear Creek

Nineteen Hundred Five

Boulder

Ninety Four Mine

Boulder

Miscellaneous "N"

Ninety One Mine

Gilpin

Nisi Prius Mine

Lake

No End Group

Park

No Name

Fremont

Miscellaneous N

No Name

Gilpin

No Name

Lake

No Name

Park

Miscellaneous "N"

No Name #3

Rio Blanco

Miscellaneous "N"

No Name Mine

Boulder

Miscellaneous "N"

No. 8 Lode

Clear Creek

Miscellaneous "N"

Nola 3

San Miguel

Nome

San Juan

Miscellaneous "N"

Nooster Tunnel & Mining Company

Rio Grande

Miscellaneous "N"

Noppe Mine

Eagle

Miscellaneous "N"

Nora Lily Mine

Dolores

Norad

El Paso

Norcross Chemical Company

Denver

Miscellaneous "N"

Norma Jean Mine

San Miguel

Norman Jean

San Juan

Normandy Mine

Summit

Miscellaneous "P"

Norsigo Mill

Lake

Miscellaneous "N"

Norsigo Processing & Refining Limited

Lake

Miscellaneous "N"

North America Mining Company

Clear Creek

North American Exploration Company Limited

San Miguel

Miscellaneous "N"

North Cheyenne Canyon

El Paso

Miscellaneous "N"

North Continent Mine

San Miguel

North Fork Tunnel

Clear Creek

North Gilpin Gold Mining Company

Gilpin

Miscellaneous "N"

North Hammer

Montrose

North London Mine

Park

North Moyer Dump

Lake

Miscellaneous "N"

North Park Company

Jackson

North Pole

Gunnison

North Slope

San Miguel

North Star

Gilpin

North Star

Gunnison

North Star

Ouray

Miscellaneous "N"

North Star

San Juan

North Star & Holliston

Teller

Norther #6

San Miguel

Northern Light

San Miguel

Northern Light Mine

Gunnison

Northern No. 1

Rio Blanco

Northern Ohio

San Miguel

Northfield

El Paso

Northgate

Jackson

Northwestern Engineering Company

Dolores

Miscellaneous "N"

Northwestern Gold Mining & Milling

Boulder

Novasembla Mine

Park

Miscellaneous "N"

NRA Mine

Boulder

Miscellaneous "N"

Nucla Strip

Montrose

Nucles

San Miguel

Miscellaneous "N"

Nu-Gap

Garfield

Number 2 Tunnel

Pitkin

Miscellaneous "N"

Number Five Mine

Boulder

Nu-Mine No. 2

Gunnison

Nutmeg

Dolores

Miscellaneous "N"

Nye Mathews Mining Company Incorporated

Gilpin

Miscellaneous "N"

O & M Mine

Boulder

Miscellaneous "O"

O. C. Mine No. 2

Gunnison

O. J. & G. M. Lease

Lake

Miscellaneous "O"

O. J. Property

Costilla

Miscellaneous "O"

O. P. Group

Gunnison

O. S. Storrs Mine

Clear Creek

Oak Claim

Teller

Oakland Mine

Pitkin

Obnoxious

Montrose

Occidental

Boulder

Occidental

San Juan

Occidental Mine

Boulder

Miscellaneous "O"

Ocean Queen Mine

Clear Creek

Ocean Spray

Montrose

Miscellaneous "O"

Ocean Wave Mine

Hinsdale

Ocean Wave Mine

Teller

Ochner Hotaling Company

Mesa

Miscell. Oil Shale

Ochre Mine

Mineral

O'Connell Drilling Company

Mesa

Miscellaneous "O"

October Adit

Mesa

Ocumpaugh

San Miguel

Miscellaneous "O"

Ocumpaughy

San Miguel

Miscellaneous "O"

Ohilo

Fremont

Miscellaneous O

Ohio

Boulder

Miscellaneous "O"

Ohio

San Juan

Ohio Tunnel

Lake

Miscellaneous "O"

Oil Shale Mining Company

Garfield

Ojo

Huerfano

Miscellaneous "O"

OK Mining & Milling Company

Teller

Miscellaneous "O"

O'Kan

Mesa

Oklahoma Mine

Boulder

Old '76 Mine

Lake

Miscellaneous "O"

Old Crucible Mining & Milling Company

Boulder

Miscellaneous "O"

Old Dougherty Mine

Gilpin

Old Faithful

Gunnison

Old Grandad

Montrose

Miscellaneous "O"

Old Green Mountain

San Juan

Old Hundred Mine

San Juan

Old Kentucky Mine

Montezuma

Miscellaneous "O"

Old Lost Claim

San Miguel

Miscellaneous "O"

Old Lot Mine

Gunnison

Old Lout

Ouray

Old Lout Mine

San Juan

Miscellaneous "O"

Old Maid Group

Ouray

Miscellaneous "O"

Old Man

San Miguel

Old Salt Lick

Montrose

Old Settler Mine

Clear Creek

Old Smoky

Ouray

Miscellaneous "O"

Old South London

Park

Old Stag Mine

San Miguel

Miscellaneous "O"

Old Stone Wall Mine

Clear Creek

Miscellaneous "O"

Old Tom

Gunnison

Miscellaneous O

Old Town Company

Clear Creek

Old Town Mine

Gilpin

Oliver

Fremont

Oliver Twist Mine

Park

Ollie Reed Mine

Lake

Omaha

Clear Creek

Miscellaneous "O"

Omega

San Miguel

One

Montezuma

One & Three Quarters Mine

Boulder

One Star No. 1

Pitkin

Miscellaneous "O"

Oneida - Stag

Clear Creek

Miscellaneous "O"

O'Neill Group

San Miguel

O'Neill, Bull & Martin

Montrose

Miscellaneous "O"

Onondaga Mine

Clear Creek

Ontario Mine

Clear Creek

Ontario Mine

Lake

Miscellaneous "O"

Onyx Mines Company

Lake

Miscellaneous "O"

Open Cut Mine

Montrose

Opera Box Group

Montrose

Ophir

Teller

Miscellaneous "O"

Ophir #17 & 27

San Miguel

Ophir Creek Gold Mining & Milling Company

Custer

Miscellaneous "O"

Ophir Iron Springs

San Miguel

Miscellaneous "O"

Ophir Mine

Boulder

Ophir Mine

Gilpin

Ophir Mine

Ouray

Miscellaneous "O"

Ophir Mine

Park

Ophir Mine

Teller

Miscellaneous "O"

Ophir Nevada

Hinsdale

Miscellaneous G

Ophir Range Gold Mine

San Miguel

Ophir Tunnel

San Miguel

Miscellaneous "O"

Ora Alta Mining Company

Park

Miscellaneous "O"

Orange Shaft

Custer

Orchard Tunnel

Archuleta

Miscellaneous "O"

Orchard Valley - Converse

Delta

Ore Body

Costilla

Miscellaneous "O"

Ore Buying Station - Mineral Recovery Corporation

Montrose

Miscellaneous "O"

Ore Products Corporation

Denver

Oregon

Montrose

Oregon

Saguache

Oregon Mine

Clear Creek

Oregon Mine & Mill

Boulder

Ores & Metals Mining & Milling Company

Ouray

Miscellaneous "O"

Orient Mine

Clear Creek

Orient Mine

Saguache

Oriental Mine

Clear Creek

Oriole Tunnel

Lake

Orizaba Mine

Grand

Orlando

Gilpin

Miscellaneous "O"

Ormsbee Development Company

Grand

Miscellaneous "O"

Oro

Dolores

Miscellaneous "O"

Oro Mine

Teller

Miscellaneous "O"

Orpha May Mine

Teller

Orphan Boy

Park

Orphan Boy Mine

Boulder

Orphan Mine

Clear Creek

Osceola Lease

San Juan

Otisito Mines Company

Lake

Miscellaneous "O"

Ottawa Mine

Clear Creek

Ouray

San Juan

Miscellaneous "O"

Ouray Mining Company's Mine

San Juan

Miscellaneous "O"

Ouray Tungsten Mining Company

Ouray

Miscellaneous "O"

Out West Mill

Montezuma

Out West Mine

Montezuma

Miscellaneous "O"

Outlaw

Mesa

Outlet Tunnel

Mineral

Outlet Tunnel

Montrose

Outlet Works Trinidad

Las Animas

Overland Production & Refining

Garfield

Oversite

Montrose

Owenby Group

San Miguel

Miscellaneous "O"

Owl Canyon Road

Larimer

Miscellaneous "H"

Owl Tunnel

Summit

Oxide Mine

Fremont

Miscellaneous O

Oyla

San Miguel

Miscellaneous "O"