Contribute a photo Posey Lake Lassen County, CA Trout Follow Share Share Posey Lake... Email Facebook Twitter Posey LakeFollow Overview Fishing Reports Guides & Tackle California Posey Lake Nearby Businesses Guides & Tackle Shops near Posey Lake Checkout local fishing businesses near Posey Lake. Add your business. Currently, no businesses are listed for Posey Lake. Be the first to add yours! Feature your Posey Lake Business here! Learn more