CBP Worldbuilding #3: Water Sources

This is the third post using Angeline Trevina’s book 30 Days of Worldbuilding (available on Amazon), the book provides 30 prompts/exercises to help guide world-building.

One of our readers Alistair suggested in the comments of a previous post that perhaps some of the swampland could take the form of bayous, have to admit I didn’t know much about bayous (beyond pop-culture references) so I had a look at a few websites including the following:

Thanks for the suggestion Alistair, I’m a big fan of the OSR module/sandbox Fever Swamp and love the idea of the bayous; that dovetailed nicely with the third prompt in the 30 Days of Worldbuilding book which is to draw the main bodies of water on your map.

I’ve already done a bit of this but decided to expand it a bit, in addition to adding some more water sources I’ve stuck some crude labels on and have added a couple of forests.

Additional water sources, some labels and forests added.

4 thoughts on “CBP Worldbuilding #3: Water Sources”

  1. This is looking really good. It has all the interesting features of the original North America map with the added feature of being sorta similar, but different.

    1. Thanks Alistair, I’ve been reading up on bayous and am definitely planning on putting one on the southern part of the map (as indicated). The next prompt–which I hope to get round to doing a post about in the next day or two–is placing the largest settlement, i’m thinking the northern half of the map on the inlet between forest and lake (on the bit of land jutting out into the sea).

  2. That lake on the peninsula looks very unlikely to me. A lake needs to be in proportion to its catchment area otherwise the supply will be unable to keep up with evaporation. Alternatively the lake could be fed by groundwater but that doesn’t look likely given the narrowness of the peninsula. If the peninsula is sandy the lake may be saline but if conditions were still enough it could have a layer of less salty water at the surface. More likely it will be a swampy area.
    When growing forests you may want to start the forest at a water source and grow it outwards. Or else assume all non-arid land is overgrown and then chop it back around your settlement areas.

    1. Thanks very much for your suggestions, I will take them into account on my next iteration of the map 🙂

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