From D'ni Zoological Society
Eder Tsogal is a garden age, and an age of rest - much like the ages of Eder Kemo, Eder Gira and Eder Delin. Not much is known about the history of Eder Tsogal or where it got its name though it was probably written during the D'ni 'Garden Binge'. It was the second new Age released by the new DRC and placed in some of the Bevin neighbourhoods for explorers to explore.
The area of this Age available to explorers consists of a small grass-covered canyon surrounded on all sides by a huge grassy plain with a number of trees . In the distance there is a forest and on the horizon a mountain range can be discerned. The Age has a large white Sun, and a small moon. So far no day-night cycle has so far been noticed in this Age.
The inside of the canyon is grassy and the canyon walls of a grey, smooth and layered type of rock, similar to that found in Eder Kemo. Spread around the canyon are five small ponds, one containing a Maintainer's Marker and the larger of them containing a fountain. There has never been any accounts of rain in the Age so is possible to assume that it is or was at some point below the areas watertable. The canyon floor is littered with smooth boulders much like the ones in Eder Kemo. In terms of structures, there's a D'ni built terrace to one side of the cavern with a small stone path leading via stairs off it by some small platforms ending at the lake with the Maintainers Marker on the other end of the canyon.