Editing Interstate 70 (section)

===Colorado===
{{Main|Interstate 70 in Colorado}}
Entering from Utah, I-70 descends into the [[Grand Valley (Colorado–Utah)|Grand Valley]], where it meets the [[Colorado River]], which provides its path up the [[Colorado Western Slope|western slope]] of the [[Rocky Mountains]]. Here, I-70 serves the [[Grand Junction, Colorado|Grand Junction]] metropolitan area before traversing more mountainous terrain.

[[File:I-70 Glenwood Canyon-terabass.jpg|thumb|left|I-70 at [[Glenwood Canyon]] ]]The last section of I-70 to be completed was the {{Convert|15|mi|km|adj=on}} [[Glenwood Canyon]]. This stretch was completed in 1992 and was an [[engineering]] marvel due to the extremely difficult terrain and narrow space in the [[canyon]], which requires corners that are sharper than normal [[Interstate standards]]. Construction was delayed for many years due to environmental concerns. The difficulties in building the road in the canyon were compounded by the fact the [[Denver and Rio Grande Western Railroad]] occupied the south bank, and many temporary construction projects took place to keep [[U.S. Route 6|US&nbsp;6]] open, at the time the only east–west road in the area. Much of the highway is elevated above the [[Colorado River]]. The speed limit in this section is {{Convert|50|mph|km/h|abbr=on}} due to the limited sight distance and sharp corners.

[[File:Eisenhower Tunnel Colorado West Entrance.jpg|thumb|right|I-70 at the portal of the [[Eisenhower Tunnel]]. The traffic signal is controlled from a command center and used for incident management.]]The [[Eisenhower Tunnel]], the highest vehicular tunnel in North America and the longest tunnel built under the Interstate program, passes through the [[Continental Divide]].

[[File:I-70-Looking Southeast.jpg|thumb|right|I-70 as it turns north at [[Copper Mountain (Colorado)|Copper Mountain]], approximately {{convert|2.5|mi|km}} from [[Vail Pass]]]] Because of the rugged and narrow terrain of the [[Rocky Mountains]], I-70 is one of few roads connecting Colorado's ski resorts with [[Denver]].

Descending through the eastern foothills of the Rocky Mountains, one can see the Denver skyline on a clear day. This can fool truckers and other unsuspecting drivers because one must still traverse {{convert|10|mi|km}} of steep grade road before reaching the city. A series of signs warns truckers of the steep grade. As I-70 leaves the foothills, it goes through Denver and intersects [[Interstate 25|I-25]], serving as the central east–west artery through the city. Leaving Denver, I-70 levels out and traverses the wide plains through eastern Colorado. East of Denver, I-70 makes a broad turn to the south-southeast for {{convert|30|mi|km}}, before reaching [[Limon, Colorado|Limon]] and resuming its eastward journey toward Kansas.