The nomination dossier referenced the issue of hydro-electric transmission lines noting that in the event of future demand and/or to strengthen supply reliability there may be the possibility of transmission lines needing to be developed within the nominated area. Though there is no expectation of immediate future high voltage transmission line development, the Province of Manitoba has not ruled out the possibility. In 2017, a high voltage power line was constructed 250 km to the west of the property. Furthermore, hydroelectric development (i.e. generation, transmission, water containment and control) is prohibited by law within the site boundaries. Despite proposed environmental and consultative safeguards, building such a transmission corridor remains a potential threat to the World Heritage site (IUCN, 2018; State Party of Canada, 2016).