Minerals information country specialists at the U.S. Geological Survey collect and analyze information on the mineral industries of more than 170 nations throughout the world. The specialists are available to answer minerals-related questions concerning individual countries.
Alphabetical Index to Country Specialists
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
- Afghanistan
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- Albania
Mark Brininstool
Phone: 703-648-7798
Fax: 703-648-7737
Email: mbrininstool@usgs.gov
- Algeria
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Angola
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Argentina
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Armenia
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Australia
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Austria
Steven T. Anderson
Phone: 703-648-7744
Fax: 703-648-7737
Email: sanderson@usgs.gov
- Azerbaijan
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Bahrain
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Bangladesh
Yolanda Fong-Sam
Phone: 703-648-7756
Fax: 703-648-7737
Email: yfong-sam@usgs.gov
- Belarus
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Belgium
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Belize
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Benin
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Bhutan
Lin Shi
Phone: 703-648-7994
Fax: 703-648-7737
Email: lshi@usgs.gov
- Bolivia
Steven T. Anderson
Phone: 703-648-7744
Fax: 703-648-7737
Email: sanderson@usgs.gov
- Bosnia and Herzegovina
Mark Brininstool
Phone: 703-648-7798
Fax: 703-648-7737
Email: mbrininstool@usgs.gov
- Botswana
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Brazil
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Brunei
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Bulgaria
Mark Brininstool
Phone: 703-648-7798
Fax: 703-648-7737
Email: mbrininstool@usgs.gov
- Burkina Faso
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Burma (Myanmar)
Yolanda Fong-Sam
Phone: 703-648-7756
Fax: 703-648-7737
Email: yfong-sam@usgs.gov
- Burundi
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Cambodia
Yolanda Fong-Sam
Phone: 703-648-7756
Fax: 703-648-7737
Email: yfong-sam@usgs.gov
- Cameroon
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Canada
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Cape Verde
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Central African Republic
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Chad
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Chile
Steven T. Anderson
Phone: 703-648-7744
Fax: 703-648-7737
Email: sanderson@usgs.gov
- China
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Colombia
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Comoros
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Congo (Brazzaville)
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Congo (Kinshasa)
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Costa Rica
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Côte d'Ivoire
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Croatia
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Cuba
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Cyprus
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Czech Republic
Steven T. Anderson
Phone: 703-648-7744
Fax: 703-648-7737
Email: sanderson@usgs.gov
- Denmark, Faroe Islands, and Greenland
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Djibouti
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Dominican Republic
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- East Timor
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Ecuador
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Egypt
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- El Salvador
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Equatorial Guinea
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Eritrea
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Estonia
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Ethiopia
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Fiji
Lin Shi
Phone: 703-648-7994
Fax: 703-648-7737
Email: lshi@usgs.gov
- Finland
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- France
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- French Guiana
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Gabon
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Gambia, The
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Georgia
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Germany
Steven T. Anderson
Phone: 703-648-7744
Fax: 703-648-7737
Email: sanderson@usgs.gov
- Ghana
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Greece
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Greenland
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Guatemala
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Guinea
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Guinea-Bissau
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Guyana
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Haiti
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Honduras
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Hong Kong
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Hungary
Steven T. Anderson
Phone: 703-648-7744
Fax: 703-648-7737
Email: sanderson@usgs.gov
- Iceland
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- India
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- Indonesia
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- Iran
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Iraq
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Ireland
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Israel
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Italy
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Jamaica
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Japan
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- Jordan
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Kazakhstan
Mark Brininstool
Phone: 703-648-7798
Fax: 703-648-7737
Email: mbrininstool@usgs.gov
- Kenya
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Korea, North
Lin Shi
Phone: 703-648-7994
Fax: 703-648-7737
Email: lshi@usgs.gov
- Korea, Republic of
Lin Shi
Phone: 703-648-7994
Fax: 703-648-7737
Email: lshi@usgs.gov
- Kuwait
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Kyrgyzstan
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Laos
Yolanda Fong-Sam
Phone: 703-648-7756
Fax: 703-648-7737
Email: yfong-sam@usgs.gov
- Latvia
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Lebanon
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Lesotho
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Liberia
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Libya
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Lithuania
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Luxembourg
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Macedonia
Mark Brininstool
Phone: 703-648-7798
Fax: 703-648-7737
Email: mbrininstool@usgs.gov
- Madagascar
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Malawi
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Malaysia
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Mali
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Malta
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Mauritania
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Mauritius
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Mexico
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Moldova
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Mongolia
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Montenegro
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Morocco & Western Sahara
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Mozambique
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Namibia
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Nauru
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Nepal
Lin Shi
Phone: 703-648-7994
Fax: 703-648-7737
Email: lshi@usgs.gov
- Netherlands
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- New Caledonia
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- New Zealand
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Nicaragua
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Niger
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Nigeria
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Norway
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Pakistan
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- Panama
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Papua New Guinea
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Paraguay
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Peru
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Philippines
Yolanda Fong-Sam
Phone: 703-648-7756
Fax: 703-648-7737
Email: yfong-sam@usgs.gov
- Poland
Mark Brininstool
Phone: 703-648-7798
Fax: 703-648-7737
Email: mbrininstool@usgs.gov
- Portugal
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Qatar
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Reunion
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Romania
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Russia
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Rwanda
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- São Tomé and Principe
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Saudi Arabia
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Senegal
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Serbia
Mark Brininstool
Phone: 703-648-7798
Fax: 703-648-7737
Email: mbrininstool@usgs.gov
- Seychelles
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Sierra Leone
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Singapore
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Slovakia
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Slovenia
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Solomon Islands
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- Somalia
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- South Africa
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Spain
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Sri Lanka
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- South Sudan
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Sudan
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Suriname
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Swaziland
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Sweden
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Switzerland
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Syria
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Taiwan
Pui-Kwan Tse
Phone: 703-648-7750
Fax: 703-648-7737
Email: ptse@usgs.gov
- Tajikistan
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Tanzania
Thomas R. Yager
Phone: 703-648-7739
Fax: 703-648-7737
Email: tyager@usgs.gov
- Thailand
Lin Shi
Phone: 703-648-7994
Fax: 703-648-7737
Email: lshi@usgs.gov
- Togo
Omayra Bermúdez-Lugo
Phone: 703-648-4946
Fax: 703-648-7737
Email: obermude@usgs.gov
- Tonga
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- Trinidad and Tobago
Susan G. Wacaster
Phone: 703-648-7785
Fax: 703-648-7737
Email: swacaster@usgs.gov
- Tunisia
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Turkey
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Turkmenistan
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Uganda
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Ukraine
Mark Brininstool
Phone: 703-648-7798
Fax: 703-648-7737
Email: mbrininstool@usgs.gov
- United Arab Emirates
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- United Kingdom
Alberto A. Perez
Phone: 703-648-7749
Fax: 703-648-7737
Email: aperez@usgs.gov
- Uruguay
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Uzbekistan
Elena Safirova
Phone: 703-648-7731
Fax: 703-648-7737
esafirova@usgs.gov
- Vanuatu
Chin S. Kuo
Phone: 703-648-7748
Fax: 703-648-7737
Email: ckuo@usgs.gov
- Venezuela
Alfredo C. Gurmendi
Phone: 703-648-7745
Fax: 703-648-7737
Email: agurmend@usgs.gov
- Vietnam
Yolanda Fong-Sam
Phone: 703-648-7756
Fax: 703-648-7737
Email: yfong-sam@usgs.gov
- Western Sahara
Harold R. Newman
Phone: 703-648-7742
Fax: 703-648-7737
Email: hnewman@usgs.gov
- Yemen
Mowafa Taib
Phone: 703-648-4986
Fax: 703-648-7737
Email: mtaib@usgs.gov
- Zaire (See Congo Kinshasa)
- Zambia
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Zimbabwe
Philip M. Mobbs
Phone: 703-648-7740
Fax: 703-648-7737
Email: pmobbs@usgs.gov
- Other Countries
W. David Menzie
Phone: 703-648-7732
Fax: 703-648-7737
Email: dmenzie@usgs.gov
