Final answer:
Oregon is the state that features the Cascade Range, including Mt. Hood, Mt. Jefferson, Mt. Bachelor, the Three Sisters as well as the Blue Mountains, Wallowa Mountains, Steens Mountains, and Klamath Mountains.
Step-by-step explanation:
The state that has the Cascade Range, including Mt. Hood, Mt. Jefferson, Mt. Bachelor, and the Three Sisters, as well as the Blue Mountains, Wallowa Mountains, Steens Mountains, and the Klamath Mountains is Oregon. These mountain ranges contribute to the diverse geography of Oregon.
The Cascades are part of the significant Pacific Coast Ranges that extend from Northern California to Canada. Oregon's notable mountains such as Mt. Hood and the Three Sisters are popular landmarks and are indicative of the state's rich volcanic activity, resulting from the subduction of tectonic plates along the Pacific Northwest.
The Blue Mountains, Wallowa Mountains, and Steens Mountains further add to the state’s geographical diversity with their unique geological features and ecosystems significantly different from the Cascades.