The Bipole III Transmission Project is a 1,388 km high voltage direct current (HVDC) transmission project traversing several ecozones. The project starts at the Keewatinohk converter station near Gillam in northern Manitoba and ends at the Riel Converter Station in the RM of Springfield. On behalf of Manitoba Hydro, Wood Canada Ltd. developed and implemented a long-term Mammals Monitoring Program compliant with the project license conditions and approved Biophysical Monitoring Plan to monitor project effects during the construction (Jan 2015-June 2018) and early operation (July 2018-ongoing) phases. Monitored mammal VECs include Woodland Caribou, Moose, Coastal and Barren-ground Caribou, White-tailed Deer, Elk, Gray Wolf, Black Bear, and Furbearer species. The multi-year study design involves systematic monitoring conducted at multiple spatial and temporal scales and integration of rigorous systematic sampling methods using combinations of non-invasive genetic sampling/ genotyping, aerial surveys, satellite telemetry, trail camera studies, winter ground tracking, and harvest monitoring, depending on mammal VEC. Caribou monitoring methods undertaken at the range scale include satellite telemetry in 4 woodland caribou local population ranges (n=20 collars/range and mortality investigations), systematic aerial surveys of ungulate-wolf occurrence and caribou herd composition. Non-invasive genetic sampling (NGS) methods integrated with capture-recapture (CR) estimation and population modelling of state and vital rates for the 4 boreal caribou populations.