Boulder grew slowly at first. In 1871, the fledgling city was incorporated as the Town of Boulder, with a population of just over 340 residents. Photo by Boulder Historical Society/Museum of Boulder Gold Hill on July 4, 1886 Explore Boulder Download our guide and walkable map of Boulder'...
[54] Heubeck C,Assembly of central Asia during the middle and late Paleozoic,Boulder,Colorado,Geological Society of America Memoir,2001. [55] 屈文俊,杜安道.高温密闭溶样电感耦合等离子体质谱准确测定辉钼矿Re-Os地质年龄,岩矿测试,2003(4). [56] 任纪舜,王作勋,陈炳蔚,姜春发,牛宝贵,李锦轶,谢广连...