Last week we decided that the apparent magnetic north effect generated by the three small islands in the central sea is a localized phenomenon, measurable only while within a few leagues. This victory for local color over continent-wide weirdness came in at a 57-43% margin.
Commenters wondered why I didn't amalgamate the alternate choices for the central lake. It seemed to me that waterfall cliffs, a volcanic crater and mountains and sinkholes all suggested incompatible geographical formations. Rather than revisit the issue I’m going to stick with the vote result in favor of escarpments and waterfalls, which beat the other two choices by a 49-28-22 margin
Finally we discovered that the arid region appears on the southeastern quadrant of the map, separated from the rivers to the north by a range of broken hills. It beat out the southwest as a possible desert by a 56-44 margin.
From uncontested assertions, we also know:
- that the small lake near the smaller breadbasket region sits on a jungle plateau, rich with macaws. I’ve placed it outside the cultivated belt.
- The peninsula at G10 is also lushly jungled, and home to valuable plants that only grow there. Its isthmus appeared or was built within living memory. When the tide is high, it is underwater. Ocean-accessible caves riddle the nearby area.
- Much of the map’s western edge is also mountainous, as is much of the southern pincer.
- Canals connect the central rivers, permitting trade between its cities.
- The arid region is home to nomadic mesas.
- The central lake is darkened/tinted (like the Rio Negro in Brazil or the depths of the Black Sea), and the creatures that live in it are notably different from those found elsewhere. A permanent storm rolls around it.
- The magnetic islands are very tall and almost smooth sided, like eroded pillars.
- The gulf between the breadbaskets is subject to tidal effects and is a beach at low tide.
- The peninsula at G4 becomes an isthmus at high tide.
- The delta floods frequently. Monsoonal rains strike the eastern region (though they no longer make it an agricultural region, as per the unaltered suggestion. I’m going to take the liberty of making this a swamp.
- The islands in the very large bay are surrounded by a constant circular current.
- The three northernmost islands are volcanic, like Hawaii. The smallest is rocky and covered with rich deposits of guano. A notorious prison is located there. The largest island in the north consists of highlands and peat-filled moors.
- Islands of plants grown together, populated with unique organisms both on "land" and at their salt-immersed roots, occasionally float slowly along the outer coasts. They rarely transit into the Great Bay.
- The Climate of the area is similar to India, Burma, Thailand. This allows a climate range from hot a sultry coastal lowlands, dry desert and lofty snow covered peaks.
Commenters are also invited to add new assertions concerning blank portions of the map. I’m particularly interested in knowing what sort of terrain marks the populated, trade-heavy central rivers.
When challenging an assertion, please do so by replying to the comment you’re challenging, rather than creating a new top-level comment. If you have an idea that challenges several previous assertions, enter it in all of the applicable threads. This will make it easier for me to see what’s still up for grabs as we fill in the map’s last corners.