Largemouth Bass

If you're targeting largemouth bass in the Mattawa, Washington area, you'll want to focus your attention on the Columbia River and its associated sloughs and backwaters. This section of the Columbia offers diverse habitat, from rocky shorelines to weed beds, creating ideal conditions for largemouth to thrive. The best time to fish for largemouth here is during the warmer months, from late spring through early fall. The spawn typically occurs in late May or early June, and the fish will be actively feeding before and after. A local tip is to target areas with submerged vegetation or structure near the shore during the early morning or late evening hours. Bass are often found in these areas ambushing prey. The largemouth population here is healthy, with opportunities to catch both numbers and some larger fish. You can access the Columbia River from various public boat ramps around Mattawa, but be aware that water levels can fluctuate significantly due to dam operations, so check conditions before heading out.