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Chicago's present natural geography is a result of the large glaciers of the Ice Age, namely the Wisconsinan Glaciation that carved out the modern basin of Lake Michigan (which formed from the glacier's meltwater). The city of Chicago itself sits on the Chicago Plain, a flat plain that was once the bottom of ancestral Lake Chicago. This plain ...
According to Graham R. Crampton, SkyTrain and San Diego's trolley system were among the most successful transit systems in three areas: stimulation of growth in city centres; stimulation of growth in declining areas; and change in the pattern of urban development. Vancouver's system was particularly impressive, according to E. Babalik: [35]
When Chicago was founded in 1837, most of the early building was around the mouth of the Chicago River, as can be seen on a map of the city's original 58 blocks. [104] The overall grade of the city's central, built-up areas is relatively consistent with the natural flatness of its overall natural geography, generally exhibiting only slight ...
It serves as a channel between the Little Calumet River and the Chicago Sanitary and Ship Canal. It is 16 miles (26 km) long and was dug over an 11-year period, from 1911 until 1922. The Cal-Sag Channel serves barge traffic in what was an active zone of heavy industry in the far southern neighborhoods of the city of Chicago and
As the city grew and annexed adjacent towns, problems arose with duplicate street names and a confusing numbering system based on the Chicago River. On June 22, 1908, the city council adopted a system proposed by Edward P. Brennan; [2] amended June 21, 1909. The changes were effective September 1, 1909 for most of the city. [3] Addresses in ...
Cook County was created on January 15, 1831, out of Putnam County by an act of the Illinois General Assembly.It was the 54th county established in Illinois and was named after Daniel Pope Cook, one of the earliest and youngest statesmen in Illinois history.
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312 Chicago - City (The Loop and central neighborhoods, e.g. the Near North Side) 773 Chicago - City (Everywhere else within the city limits, excluding central area) 872 Chicago - City (overlay for 312 & 773, effective November 7, 2009) 847/224 (North and Northwest Suburbs) 630/331 (Outer Western Suburbs) 708 (South and Near West Suburbs)