The Corona Freeway is a freeway traveling through Riverside County, California. It is signed as Interstate 15 along its entire length.

After Interstate 215 (the northern portion of the Escondido Freeway) splits from I-15 in Devore , I-15 continues on a roughly SSW path through southern San Bernardino, and is named the Ontario Freeway. The Ontario Freeway crosses the Riverside County line at Ontario, and continues to its southern terminus at Limonite Avenue in unincorporated Riverside County. I-15 then assumes the name of the Corona Freeway. This freeway continues through southwestern Riverside County until its terminus at California State Highway 74 (the Ortega Highway) in Lake Elsinore; I-15 continues thereafter as the Temecula Valley Freeway.

The name "Corona Freeway" is, confusingly, sometimes applied to the Riverside County portion of California State Highway 71 , which runs parallel to I-15 approximately 7 miles to the west; however, in 1991, the California Assembly passed legislation officially designating that route as a part of the Chino Valley Freeway.

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Communities along the Corona Freeway include:

• Norco
• Corona
• Lake Elsinore

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Freeways intersecting the Corona Freeway include:

• Ontario Freeway
• Riverside Freeway
• Temecula Valley Freeway