Yugoslavia 109 Yemen (Republic) 53 Yellowstone National Park 40 Yucatán (State) 30 Yukon 29 Yucatán (Mexico : State) 26 Yunnan Sheng 23 Yorkshire 21 Yorkshire (England) 19 Yosemite National Park (Calif.) 19 Yunnan Sheng (China) 12 Yehud (Persian province) 8 Yellowstone National Park Region 8 Yemen (Arab Republic) 8 Yucatán Peninsula 8 Yosemite National Park 6 Yogyakarta 5 York 5 Yorktown (Va.) 5 Yucca Mountain 5 Yukon River Valley (Yukon and Alaska) 5 Yogyakarta (Indonesia) 4 Yukon River (Yukon and Alaska) 4 Yakama Indian Reservation (Wash.) 3 Yangtze River (China) 3 Yangtze River Delta 3 Yangtze River Delta (China) 3 Yokohama-shi 3 Youngstown 3 Youngstown (Ohio) 3 Yakama Indian Reservation 2 Yan'an Shi 2 Yap 2 Yellow Sea 2 Yellowknife 2 Yemen, South 2 Yokohama-shi (Japan) 2 Yongsan-gu (Seoul, Korea) 2 Yonkers 2 Yonkers (N.Y.) 2 York Factory (Man.) 2 Yosemite Valley 2 Yosemite Valley (Calif.) 2 Yukon River Watershed (Yukon and Alaska) 2 Yukon-Kuskokwim Delta (Alaska) 2 Yunan Xian 2 Yadkin County (N.C.) 1 Yadkin River Valley (N.C.) 1 Yaku Island 1 Yaku Island (Japan) 1 Yakutat 1 Yakutat (Alaska) 1 Yakutat Bay Region 1 Yamuna River (India) 1 Yan'an Shi (China) 1 Yangtze River Gorges (China) 1 Yangtze River Region 1 Yangtze River Region (China) 1 Yangtze River Valley 1 Yangzte River Delta (China) 1 Yantaló 1 Yantaló (Peru) 1 Yaoundé 1 Yap (Micronesia) 1 Yaqui River Valley 1 Yarrabah Aboriginal Reserve (Qld.) 1 Yaxcabá 1 Yaxcabá (Mexico) 1 Yazoo City 1 Yazoo City (Miss.) 1 Ybor City (Tampa, Fla.) 1 Yehud (Israel) 1 Yekepa 1 Yekepa (Liberia) 1 Yellow River 1 Yellow Sea Coast (Korea) 1 Yellowknife (N.W.T.) 1 Yellowknives Dene First Nation 1 Yellowstone National Park (Agency : U.S.) 1 Yellowstone River Valley 1 Yellowtone National Park 1 Yemen 1 Yemen, Republic of 1 Yerres 1 Yiwu Xian 1 Yiwu Xian (China) 1 Yoakum (Tex.) 1 Yoho National Park 1 Yokogoshi-mura (Japan) 1 Yonezawa-han (Japan) 1 Yongxiu Xian 1 York (England) 1 York County 1 York Factory 1 Yorkshire Dales (England) 1 Yorktown 1 Yorkville (New York, N.Y.) 1 Yoruba 1 Yosemite 1 Youghiogheny River 1