Utah Lake is a natural shallow fresh waterlake in its center. All rivers in the valley flow into Utah Lake, which itself empties into the Jordan River to the north. That river flows into the Salt Lake Valley through the Jordan Narrows, a gap in the Traverse Mountains. Geographic borders of the Utah Valley are the following; The Traverse Mountains and West Traverse Mountains to the north, the Wasatch mountains to the east, Juab Pass to the south, and Goshen Pass, West Mountain, Utah Lake, the Lake Mountains, and Cedar Pass to the west.
The geography of Utah Valley combined with the prevalence of fossil fuel burning vehicles leads to poor air quality in Utah.[1]
The population of Utah Valley is estimated at 575,205 by the United States Census Bureau.[4] The growth in the area has been significant. In 1970, 1980, 1994, 2009 the population was 125,005; 204,102; 277,179; and 555,551 respectively.
The most populous city is Provo,[5] with a population count of 114,801 inhabitants.[6]