Confirm the current BC freshwater fishing regulations (Region 4, Kootenay), including any bait, motor or ice-fishing limits for this lake, before you fish.

Diamond sits in the Bull River watershed, covering surface area not recorded.

For an angler judging whether the fishing is worth the drive, the stocking record is the fishing report. Diamond is a put-and-take angling fishery, stocked with catchable game fish: 17 recorded releases totalling 11,500 fish (Rainbow Trout), last stocked 2024-11-01.

It is still stocked (most recent release 2024-11-01), so it fishes as a put-grow water: this season's fish come from the latest cohorts, topped up to keep it going. The chart below shows the release history by year and species.

Diamond fishes as a put-grow stillwater: work chironomids under an indicator over the shoals in spring, then leech and attractor retrieves along the drop-offs as the shallows warm. The stocking record below is the truest read on the size and cohort of fish you will find.

Confirm the launch, parking and any motor/float or seasonal restrictions for Diamond locally before you commit a day; the map shows where the lake sits in its drainage.