Library online card catalogue: UDC sequence

BGS Information Hub

The card catalogue records items added to the BGS Library service from 1970 to the mid 1980s, when the computerised catalogue ENVIROLIB began. We have undertaken a continuous programme of adding older records to ENVIROLIB and in many cases, the older card catalogue has not been amended. When undertaking a search, users should check the current online catalogues before checking the card catalogue.

Universal Decimal Classification (UDC) sequence for geographic areas

Guide to the UDC geographic codes

Code Description
(100)International. All countries in general
(2)Physiographical regions
(21)Land areas, mainland
(211)Cold, frigid
(213)Hot, tropical
(22)Island
(23)Mountains
(234)Mountains of Europe
(234.6)Mountains of the British Isles
(234.62)Welsh, Cambrian
(234.63)Pennine Chain and Cumbrian
(234.64)Scottish Southern Uplands, Cheviots
(234.65)Scottish Highlands, Grampians
(235)Mountains of Asia
(236)Mountains of Africa
(237)Mountains of North America
(238)Mountains of South America
(239)Mountains of Oceania, Antarctica
(24)Subsurface, underground
(25)Plains, desert, marsh, etc.
(26)Marine. Oceans. Seas
(261/264)Atlantic
(265/266)Pacific
(267)Indian Ocean
(268)Arctic
(269)Antarctic
(28)Inland waters and waterways
(282)Rivers and canals
(285)Lakes
(3)The Ancient World (Orient, ancient Rome and Greece, etc.)
(4/9)The modern world (continents, countries, regions)
(4)Europe
(41/42)British Isles. Britain
(41-4)(U.K. (and Commonwealth)
(410)Great Britain
(411)Scotland
(415)Ireland
(416)Northern Ireland
(417)Irish Republic
(420)England
(421)London
(429)Wales
(430)Germany
(435.9)Luxemburg
(436)Austria
(437)Czechsolovakia
(438)Poland
(439.1)Hungary
(44)France
(45)Italy
(460)Spain
(469)Portugal
(47)USSR
(470)Russia (RSFSR)
(476)Belorrussia
(477)Ukraine
(48)Scandinavia
(480)Finland
(481)Norway
(485)Sweden
(489)Denmark
(491)Iceland and Faroe
(492)Netherlands
(493)Belgium
(494)Switzerland
(495)Greece
(496.5)Albania
(497)Balkans
(497.1)Yugoslavia
(497.2)Bulgaria
(498)Roumania
(5)Asia
(5-011)Near and Middle East
(5-012)Far East
(51)China
(515)Tibet
(517)Mongolia
(519)Korea
(520)Japan
(529)Formosa (Taiwan)
(53)Arabia
(532)Saudi Arabia
(533)Yemen
(534)Aden and Hadhramaut
(536.8)Kuwait
(54)Indo-Pakistan subcontinent
(540)India
(548.7)Sri Lanka (Ceylon)
(549)Pakistan
(55)Iran (Persia)
(560)Turkey
(564.3)Cyprus
(567)Iraq
(569.1)Syria. See also (620)
(569.3)Lebanon
(569.4)Israel. Palestine
(569.5)Jordan. Transjordan
(57)Asiatic USSR. Siberia, etc.
(581)Afghanistan
(59)S.E. Asia. Indo-China
(591)Myanmar, (Burma)
(593)Thailand. Siam
(595)Malaysia (Malaya). Cf. (91)
(596)Cambodia
(597)Vietnam
(598)Laos
(6)Africa
(61)North Africa
(611)Tunisia
(612)Libya
(620)Egypt
(624)Sudan
(631)Ethiopia (Abyssinia)
(64)Morocco and N.W. Africa
(65)Algeria
(66)West and N. Central Africa
(661)Mauritania and West Sahara
(662)Mali
(663)Senegal
(665.1)Gambia
(665.2)Guinea
(665.7)Portuguese Guinea
(665.9)Sierra Leone
(666.2)Liberia
(666.8)Côte d’Ivoire (Ivory Coast)
(667)Ghana
(668.1)Togo
(668.2)Dahomey
(668.8)Burkina Faso (Upper Volta)
(668.9)Niger
(669)Nigeria
(67)Equatorial and East Africa
(671.1)Cameroun
(671.8)Rio Muni (Sp. Guinea)
(672.1)Gaboon
(672.4)Congo (Middle Congo)
(673)Angola
(674.1)Central African Republic
(674.3)Chad
(675)Congo (former Belgian)
(675.57)Ruanda, Burundi (Ruanda-Urundi)
(675.8)Katanga
(676)East Africa
(676.1)Uganda
(676.2)Kenya
(677)Somalia (Somaliland)
(678)Tanzania (Tanganyika) and Zanzibar
(679)Mozambique
(680)South Africa (Republic)
(683.4)Swaziland
(686.1)Lesotho (Basutoland)
(688)Namibia (South West Africa)
(689)Zimbabwe and Malawi (Rhodesia and Nyasaland)
(691)Malagasy Republic (Madagascar)
(698)Reunion and Mauritius
(699)Southern (Indian and Atlantic) Ocean islands
(7/8)Americas, N. and S.
(7)North America
(71)Canada
(72)Mexico (and Central America)
(728)Central America
(728.1)Guatemala
(728.2)Belize (British Honduras)
(728.3)Honduras
(728.4)El Salvador
(728.5)Nicaragua
(728.6)Costa Rica
(728.7)Panama
(729)West Indies. Caribbean islands
(729.1)Cuba
(729.2)Jamaica
(729.3)Dominican Republic
(729.4)Haiti
(729.5)Puerto Rico
(729.6)Bahamas
(729.7/.8)Lesser Antilles. Leewards
(729.9)Bermuda Islands
(73)United States of America
(8)South America
(81)Brazil
(82)Argentina
(83)Chile
(84)Bolivia
(85)Peru
(861)Colombia
(866)Ecuador
(87)Venezuela
(881)British Guiana
(882)French Guiana
(883)Surinam (Dutch Guiana)
(892)Paraguay
(899)Uruguay
(9)Oceania and polar regions
(91)Malay Archip. E. Indies.
(910)Indonesia
(911)Borneo, Sarawak, etc.
(914)Philippines
(93)Australasia. Melanesia
(931)New Zealand
(94)Australia
(946)Tasmania
(95)New Guinea, Papua, etc.
(96)Polynesia: Fiji, Hawaii, etc.
(98/99)Polar regions
(98)Arctic and N. Polar region
(988)Greenland
(99)Antarctica and S. Polar region

Contact

If you want to discover more then please contact the BGS Library.

You may also be interested in

BGS Maps Portal

Scanned records

Open access to a number of our digital scan collections, including borehole log scans and published maps.

Show more
Library

Library

We have extensive collections of books, maps, journals and BGS publications. We also hold special collections of British geological photographs and archive material, chiefly the historical archives of the BGS.

Show more
BGS library cards

Library services: online card catalogue

The card catalogue records items added to the BGS Library service from 1970 to the mid 1980s, when the computerised catalogue ENVIROLIB began

Show more

Was this page helpful?

  • How can we make this section better?*

  • Please select a reason*

  • How can we make this section better?*