The phrase identifies cartographic representations focused on the central business district of Oregon’s largest metropolis. These resources depict streets, landmarks, and infrastructure within the core of this urban center. Examples include publicly available online services, printed tourist guides, and specialized documents utilized for urban planning.
Access to detailed spatial information of the central urban area facilitates navigation, promotes commerce, and supports effective urban management. Historically, such documents have evolved from hand-drawn sketches to sophisticated digital products, reflecting technological advancements and the growing complexity of the modern city. They serve crucial functions ranging from assisting visitors to informing emergency response strategies.