Help with a crazy riddle/trivia question

No atlas available at present but cd it be to do with latitude and longitude?

answer found
thanks for the help, I found the answer but didn't have to with latitude.

What is the answer, please?

The answer maybe:

Colfax Avenue is the main street that runs east and west through the Denver-Aurora metropolitan area in Colorado. As U.S. Highway 40, it was the principal highway serving Denver before the Interstate Highway System was constructed. In the local street system, it lies 15 blocks north of the zero meridian, and thus would otherwise be known as "15th Avenue". the 26-mile length of the street makes it the longest. However, the street was named for the 19th-century politician Schuyler Colfax. On the east it passes through the cities of Aurora, then Denver, and on the west, through Lakewood. Colfax Avenue cuts through Original Aurora, the city's historic core, and skirts the southern edge of downtown Denver. Because of the dense, mixed-use character of the development along Colfax Avenue, the Regional Transportation District bus route 15 - East Colfax has the highest ridership in the RTD system. In 2006, the first Colorado Colfax Marathon was held, traversing the length of Colfax Avenue through the three cities. (Check the map, it may be four)