Zebulon Montgomery Pike, The Expeditions of Zebulon Montgomery Pike…
“ From this to Leech 325 Lake the communication [through Leech Lake river] is direct and without any impediment. This is rather considered as the main source, although the Winipeque Branch is navigable the greatest distance.To this place the whole face of the country has an appearance of an impenetrable morass or boundless savanna. But 326 on the borders of the lake is some oak, with large groves of sugar-maple, from which the traders make sufficient sugar for their consumption the whole year. Leech Lake communicates with the river De Corbeau by seven portages, and with the river Des Feuilles ”
