The Kellogg – Mt. Scott Creek watershed encompasses about 16 square miles (10,300 acres) and is home to an amazing array of wildlife including coho/silver salmon, steelhead, cutthroat trout, Pacific lamprey, great blue heron, coyote, deer, salamanders, newts, frogs, pileated woodpecker, wood duck and more. The basin reaches from it’s headwaters in Johnson City at Hearthwood Wetland and at Happy Valley Wetland Park in Happy Valley to the creek’s confluence with the Willamette River in downtown Milwaukie.