The oldest narrative source about Mälardalen is written by Rimbert who may have been with the Nordic Apostle Ansgar on his second trip to Birka during the second half of the 800s. On this map are many beautiful stretches along the shores of Lake Mälaren, fine bays, fertile plains and stately castles such as Taxinge and Gripsholm in Mariefred. On the northern part of the bicycle map are Västerås with the west, Enköping and Uppsala uplands in the northeast. Bicycle map Östra Mälaren gives a detailed picture of the cycling routes in the area.

At the top of the northwest on the northern map sheet is Sala, in southwest Västerås and then follow Enköping, Bålsta, Sigtuna, Märsta, Knivsta and up in northeast Uppsala. On the southern part of the cycle map are Sörfjärden and Strängnäs. Further south you will find Åkers parc, Mariefred, Södertälje, Ekerö and Upplands Väsby up in the northeast.

All information in the map is available in Swedish, English and German.