You are looking at exactly the same area...

...with your eyes you see nothing but trees...

...remove the trees with the slider...

...and you suddenly see hills and creeks...

...and even nesting mounds of scrub fowls and brush turkeys.

The left image is an aerial photograph, the right image is a LiDAR-derived Bare Earth image.

Keep scrolling...

Below you can do the same for the whole rainforest block.

Keep scrolling...

And once you have this....

...you can also see where all the creeks are.

The grey scale images were rendered using RVT - Relief Visualization Toolbox Version 2.0

Kokalj, Žiga, Klemen Zakšek and Krištof Oštir. 2011. Application of Sky-View Factor for the Visualization of Historic Landscape Features in Lidar-Derived Relief Models. Antiquity 85 (327): 263–273.

Zakšek, Klemen, Krištof Oštir and Žiga Kokalj. 2011. Sky-View Factor as a Relief Visualization Technique. Remote Sensing 3: 398–415.