- ca. 1888-1995, predominant 1890-1916
Records in this series originated as a result of the recording and dissemination of geographical information as the lands, waters, and minerals of the Yukon and surrounding region were increasingly explored and appropriated by non-Indigenous peoples. The series also contains technical drawings, originating from the development of communication and transportation systems, including plans for railways and telephone lines. While the majority of records in this series were created by a corporate or government body, including the Yukon Engineering Services and the Canadian Pacific Railway Company, a few items were created by individuals for personal use, such as a hand drawn map of the Klondike gold fields by Tappan Adney. Materials in this series range in date from ca. 1888 to 1995.