starting at the Colorado-Kansas state line. For a brief time, Limon was also used as a control city for 253 miles of Interstate 70 in Kansas westbound from Salina to the state line. The control cities are now Hays from mile markers 253 to 161, and Denver from mile marker 161 to the state line. Interstate 75 in Michigan uses the Mackinac Bridge as a control point between Sault Ste. Marie and Saginaw. Interstate 76, Interstate 70, and PA Route 66 all use New Stanton, Pennsylvania as a control city, due to the fact that it is at PA 66's terminus as well as the beginning of the I-70/76 Concurrency. Additionally, Breezewood is used as a control city between the Interstate 76 and Interstate 70 heading to Washington, DC. However, I-70 contains a freeway gap in downtown Breezewood. Interstate 84 in Oregon heading eastbound from Portland uses The Dalles, Pendleton, LaGrande, Baker City, and Ontario as control cities. Boise, Idaho isn't signed until the freeway reaches Ontario. Going westbound from Pendleton, Portland becomes the control city on I-84, skipping over The Dalles. Interstate 94 in Michigan uses Marshall, Michigan as a control city between Battle Creek and Jackson. However, in many other instances, the next major city near or along the route is used as a control city, often skipping over minor localities where two US-interstates meet. For instance: Interstate 10 in Arizona heading eastbound from Tucson to the New Mexico state line uses El Paso, Texas as a control city and skips over Las Cruces, New Mexico, a smaller city (compared to El Paso) where the southern terminus of Interstate 25 is located. Interstate 40 in Arizona heading westbound from Flagstaff uses Los Angeles as a control city instead of Barstow, California (the western terminus of I-40 at Interstate 15) or Kingman. Interstate 15 uses Los Angeles as a control city south of Las Vegas as well. I-40 and I-15 do not go anywhere near Los Angeles, but the use of it as a control city on I-40 is probably a holdover from the days when the route was US 66 (the western terminus was in Santa Monica), and US 91 (which ended in Long Beach) for I-15, as well as the fact that most of the California bound traffic on I-40 and I-15 are headed to the Los Angeles area. Interstate 20 in Texas heading westbound from Midland–Odessa