Fyrisån

Fyrisån is a river in Sweden that flows through Uppsala County. It originates in the southern part of the county and flows northward through the city of Uppsala before emptying into Lake Mälaren. The river is approximately 100 kilometers long and has a drainage basin of about 2,000 square kilometers.

The Fyrisån has played a significant role in the history and development of Uppsala. Its waters were historically used for transportation, agriculture, and industry. The riverbanks have been inhabited for centuries, and many archaeological finds attest to the area's long history. In Uppsala, the river divides the city into two parts, with the cathedral and university located on the western bank and the more modern urban areas on the eastern side.

The river is relatively shallow and has a gentle gradient for much of its course. Its flow can vary significantly depending on precipitation and snowmelt. The Fyrisån supports a variety of aquatic life, though water quality has been a concern at times due to agricultural runoff and industrial discharge in the past. Efforts have been made to improve the river's environmental health.

Today, the Fyrisån is a prominent feature of the Uppsala landscape, offering recreational opportunities such as kayaking and fishing. Several bridges cross the river in Uppsala, connecting the different parts of the city. The presence of the Fyrisån is integral to Uppsala's identity and its natural surroundings.