Terra Ultima Incognita: Z-C4

In this grid zone, the geology and the biosphere contained within it is quite typical; we'd note the continuation of the wide crescent-shaped beach from C5 (and to an extent; B5), the mountainous region that started from the west-side relative to C5 appears continue into C4 on the east-side relative to C4; which then shows a gap between two mountainous regions in the central sector of C4. The river system continues into here as well from C5; but with the recent discoveries, we see that the primary and secondary rivers converge towards the bottom-left side of the grid zone, possibly hinting a delta in the grid zone C3. Other than being heavily forested, it is quite hilly near the mountainous regions; we also note the hilly terrain in the southern side of the grid zone; as well as the continuation of residual hills of the large mountainous region from C5; in the lower right corner of the grid zone. *Change note: See change notes, silly.