sentences:  Alfred Selwyn and George Dawson of the Geological Survey of Canada used and reported on the portage, with Dawson showing both the Salmon and Giscome Portages on his 1879 map.Dunlevy’s trading post closed about 1895 when Peace River freight generally travelled via the railhead at Edmonton.By this time, most of the miners had left for other gold strikes and the road fell into disrepair.