ABCD-FGH-JK-LMN-OP-RSS(cont)TU-Z


Ubehebe Craters - California         Extra
Ubinas- Peru         Extra
Udina (Bolshaya and Malaya) - Russia         Extra
Udokan Volcanic Field - Russia
Ugashik - Alaska
Uinkaret Volcanic Field - Arizona         Extra
Uka - Russia
Ukinrek Maars - Alaska         Extra
Uksichan - Russia
Ulawun - Papua New Guinea
Uliaga - Alaska
Ulreung - South Korea
Ulug-Arginsky - Russia
Umboi - Papua New Guinea
Undara - Australia
Ungaran - Indonesia
Unzen - Japan         Extra
Upolu - Western Samoa
Urataman - Russia
Urgup Basin - Turkey
Ushishur - Russia
Ushkovsky - Russia
Usu - Japan
Usulutan - El Salvador
Utila Island - Honduras
Uturuncu - Bolivia
Uzon - Russia         Extra
Vailulu'u - Samoan Islands
Vakak Group - Afghanistan
Valles Caldera - New Mexico
Valley of Ten Thousand Smokes - Alaska
Vatnafjoll - Iceland
Veer - Russia
Veniaminof - Alaska         Extra         Extra
Verkhovoy - Russia
Vernadskii Ridge - Russia
Vestmannaeyjar - Iceland
Vesuvius - Italy         Extra
Veteran - Vietnam
Victory - Papua New Guinea
Viedma - Argentina
Viejo - Costa Rica
Villarica - Chile         Extra
Vilyuchik - Russia         Extra
Vindication - S. Sandwich Islands
Virunga Volcanic Complex - Uganda
Visoke - Dem. Rep. of the Congo         Extra
Visokiy - Russia
Visokoi - S. Sandwich Islands
Viti - Iceland
Volcanello - Italy
Volcanico - Argentina
Volcano Creek - Canada
Volcano Mountain - Canada
Voon - Chad         Extra
Voyampolsky - Russia
Vsevidof - Alaska         Extra
Vulcan - Papua New Guinea
Vulcan Island - Papua New Guinea
Vulcano - Italy         Extra
Vulcan's Throne - Arizona
Vulsini - Italy
Waesche - Antarctica
Wai Sano - Indonesia
Waianae - Hawaii
Waimangu Valley - New Zealand
Waiowa - Papua New Guinea
Wallis Islands - Pacific Ocean (France)
Walo Volcanic Field - Papua New Guinea
Wapi Lava Field - Idaho
Warrumbungles - Australia
Washiba-Kumonotaira - Japan
Washington - Oregon         Extra         Extra
Watts Point - Canada
Waw an Namus - Libya
Wayang-Windu - Indonesia
Wells Gray-Clearwater Volcanic Field - Canada         Extra
Boss Mountain
Buck Hill Cone
Dragon Cone
Fiftytwo Ridge
Flatiron
Flourmill Cone
Gage Hill
Hyalo Ridge
Ida Ridge
Jacques Lake
Jack's Jump
Kostal Lake
McLeod Hill
Mosquito Mound
Pillow Creek
Pointed Stick Cone
Pyramid Mountain
Quesnel Lake
Ray Mountain
Spanish Bonk
Spanish Lake Centre
Spanish Mump
Whitehorse Bluff
West Crater Volcanic Field - Washington
Westdahl - Alaska         Extra
West Eifel Volcanic Field - Germany
West Maui - Hawaii
West Molokai - Hawaii
Whale Island - New Zealand
Whangarei - New Zealand
White Island - New Zealand         Extra         Extra
Wilis - Indonesia
Wizard Island - Oregon
Wolf - Galapagos Islands         Extra
Wolf Island - Galapagos Islands         Extra
Wonchi - Ethiopia
Wrangell - Alaska         Extra         Extra
Wrangell Volcanic Belt - Canada
Wudalianchi Volcanic Field - China         Extra
Wurlali - Indonesia
Xianjindao - North Korea
Yake-dake - Japan         Extra
Yali - Greece         Extra
Yagundi - Ethiopia
Yantarni - Alaska         Extra
Yanteles - Chile
Yasur - Vanuatu         Extra
Yate - Chile
Yega - Chad
Yeguada - Panama
Yelia - Papua New Guinea
Yellowstone - Wyoming         Extra         Extra         Extra
Yersey - Indonesia
Yirrigue - Chad
Yomba - Papua New Guinea
Yoran - Oregon
Yotei - Japan
Young Island - Antarctica
Yucumane - Peru         Extra
Yumia - Bolivia
Yunaska Volcanic Complex - Alaska         Extra
Zao - Japan
Zaozerny - Russia
Zapatera - Nicaragua
Zarechny - Russia
Zavaritski - Russia
Zavodovski - S. Sandwich Islands         Extra
Zengyu - Taiwan
Zhelotovsky - Russia         Extra
Zhupanovsky - Russia         Extra
Zimina - Russia         Extra
Zukur - Yemen
Zukwala - Ethiopia
Zuni-Bandera Volcanic Field - New Mexico
Zuni Salt Lake Maar - New Mexico