It empties into Beaver Lake, about 90 miles (140 km) northwest of The Pas, Manitoba.

Above Scoop Rapids, about halfway along the river, the drainage area is about 5,678 square miles (14,710 km2).

[7] Peter Pond, a poor speller, showed the lake as "Mineront" in his maps drawn around 1785.

Sir John Franklin on his overland expedition of 1819-22 wrote "Miron" as "Heron", and this was copied by several other map makers.

Black spruce (picea mariana) is common but not dominant, and other trees include white spruce (picea glauca), trembling aspen (populus tremuloides), jack pine (pinus banksiana) and balsam fir (abies balsamea).

[14][15] A Saskatchewan live release record for northern pike was set at Mirond Lake in 2008, with a 141 centimetres (56 in) specimen.