Akenside sits at 50.71069, -116.38800, running stream order 4 (mid-range on a scale from 1 for a headwater trickle to 6 or more for a full river) for roughly 10 km before joining
Frances Creek, which drains into
Forster Creek and then the
Columbia River. A regional fish habitat inventory describes Akenside as fed by a series of alpine lakes in its headwaters, but notes that lower sections run intermittent and may dewater before reconnecting to Frances, especially during summer low flow. Fish moving up from the Columbia are blocked well downstream by a cascade and a roughly 3 m falls in lower Forster Creek, so anything living this high in the system is a resident or lake-connected population rather than a mainstem migrant.