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The Long Mississippi was a Long Earth trade route for twains, that went from the Low Earths and the Datum to Valhalla. Some of the route passed over footprints of the river it was named after.

Trade on the Long Mississippi happened both ways. The goods flowing towards the datum were mostly raw materials, such as timber, foodstuffs and minerals, and mainly came from the Corn Belt worlds. The staple export from these Earths were sacks of corn, in warmer areas sugar and oranges were also grown.

The Corn Belt also traded timber, which was the most popular spectacle with tourists in this area. Wood would be floated down one Mississippi or another, lifted out of the water by a twain, and roped together into huge platforms that hung beneath it. It would be taken to the Datum like this, with the troll labourers and their human supervisors riding in huts on top of platforms.

In worlds further than 500,000 steps from the Datum, only rare or precious items were worth bringing in, such as unique old-tree lichens, and other exotic flora and fauna.

In exchange for all these things, the Datum shipped out low-mass but high-tech goods, such as medical kits, electrical generators, and coils of fibre-optic cable (for establishing communication networks in new worlds). The Low Earths also traded items with worlds further out, especially horses.

There were waystations spread stepwise and geographically all along the Long Mississippi, where twains took on cargo. They were more frequent closer to Datum Earth. The stations had inns and the like for rest and recreation, and many a small jailhouse.[1]

The Long Mississippi diminished after the Yellowstone eruption of 2040,[2] however was still functional in 2045.[3]

The Long War

JoshuaHelen and Dan Valienté along with Sally Linsay traveled down this route when they went from Valhalla to the Datum in the Gold Dust, in 2040 [1].

The Long Utopia

After the catastrophic winter of 2046, most long-range Long Earth exchanges, including the Long Mississippi, were stopped. This meant that there were less opportunities for people to become twain drivers.[2]

References

  1. 1.0 1.1 The Long War - Chapter 16
  2. 2.0 2.1 The Long Utopia - Chapter 6
  3. The Long Mars - Chapter 6

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