Pages of Natural History

It's now sol 121 midnight at Gale crater and Curiosity has been returning some excellent vistas from its new location besides a layered outcrop.

Curiosity's current position is marked 'Sol 120 position'. Also marked are recent stops and Yellowknife bay.
The red route ends at Rocknest. This view looks southwards (Google)

Before, Curiosity spent more than two weeks (sol 102 up to 119) at Bell Island, conducting contact studies of the rock with it's APXS instrument.

Bell Island, sol 117 (NASA/JPL)

Here is a gorgeous colour mosaic of the scene at Bell Island shot on sol 118 looking towards the south of the rover (towards Mount Sharp). 

View from sol 118 looking south, south west (NASA/JPL/MSSS/mosaic by me)

Then on sol 120, Curiosity drove towards the cool looking outcrops of layered rocks that you can see to the extreme left in the mosaic above. 

Sol 120 navigation mosaic shows the layered outcrop targeted by the sol's drive (NASA/JPL/mosaic by me)

Why is the team so interested in layers? These rocks are layered and therefore indicates their sedimentary origins. Each layer represents a period of past environmental conditions, like pages of a book. And each page might reveal a different part of Gale's past. And Curiosity is all about past natural history. Something tells me we're going to be here for a while.