The Collin Creek Trail is a part of a large network of trails in and around the Redmond Watershed Preserve. It connects the Pipeline Regional Trail within the preserve to the Redmond Ridge Trail (allowing access to Tolt Pipeline Trail) in the Trinity neighborhood.
Please note that dogs are not allowed in the Redmond Watershed Preserve, which you will cross into if you begin at the preserve's north entrance, or which you'll cross into near Sun Break Way NE if you're coming in from the Trinity neighborhood.