What is "llanfihangelesgeifiog"

Llanfihangelesgeifiog ( Welsh: Llanfihangel Ysgeifiog) is a village and a community in Anglesey, Wales, east of Llangefni. The community includes the villages of Gaerwen and Pentre Berw; it also includes the Malltraeth Marsh RSPB. The percentage of Welsh language speakers in the community in 2011 was 76.5%.

Coal was mined in the area from the 15th to the 18th century.