Editing Interstate 40 (section)

===New Mexico===
{{Main|Interstate 40 in New Mexico}}
I-40 covers {{convert|374|mi|km}} in New Mexico. As in other states it parallels or overrides the post 1937 Route 66 route through the state. Notable cities along I-40 include [[Gallup, New Mexico|Gallup]], [[Grants, New Mexico|Grants]], [[Albuquerque, New Mexico|Albuquerque]], [[Santa Rosa, New Mexico|Santa Rosa]], and [[Tucumcari, New Mexico|Tucumcari]]. I-40 also travels through several [[Indian reservation]]s in the western half of the state. It reaches its highest point in the state of {{convert|7275|ft|m}} at the Continental Divide (Campbell Pass) in western New Mexico between Gallup and Grants. The last place that I-40 tops {{convert|7000|ft|m}} is at the head of Tijeras Canyon east of Albuquerque at approximately {{convert|7040|ft|m}}.

Arizona, New Mexico, Texas, Oklahoma, and Arkansas are the five states where I-40 has a speed limit of {{convert|75|mph|km/h|abbr=on}} instead of the {{convert|70|mph|km/h|abbr=on}} limit in California, Tennessee, and North Carolina.<ref>{{Cite web |url = https://tulsaworld.com/news/speed-limit-on-much-of-i-40-i-35-raised-to-75-mph/article_f9e3cc58-cc3f-5f09-82cb-db170a67ffc8.html |title = Speed limit on much of I-40, I-35 raised to 75 MPH |date = August 4, 2020 }}</ref><ref>{{Cite web |url = https://www.5newsonline.com/article/traffic/speed-limit-on-i-40-in-the-river-valley-increases-to-75-mph/527-fa7bfbf5-125d-4bfc-91f1-6bf26370938e |title = Speed limit on I-40 in the River Valley increases to 75 MPH |date = August 6, 2020 }}</ref>