Montana 139 is an Indian reserve in Alberta. It is located 26 kilometres (16 mi) south of Wetaskiwin. It is at an elevation of 796 metres (2,612 ft). Located near Maskwacis, it is one of two reserves under the governance of the Montana First Nation. The other is Pigeon Lake 138A, which is shared with three other First Nations, the Ermineskin Tribe, the Louis Bull First Nation and the Samson Indian Reserve No.