jungle la jungle
swamp le marais; le marécage
valley la vallée
plain la plaine
ground la terre, le sol
sky le ciel
horizon ..

slope la pente
hilly  vallonné, accidenté (adj.)
mountainous montagneux/-euse.
pass col
ridge l'arête, le corniche
glacier le glacier
meadow la pré, la prairie
clearing la clairière

There is a trail along the ridge up there.
Il y a un sentier le long de la crête en haut.

scenery ..
view ..
panorama ..
panoramic ..

The scenery in Yellowstone national park is beautiful!
Le ...est époustouflant.

The view from the top of mount everest is amazing.
..

source (of a river) la source
mouth (of a river) l'embouchure  f.
bank ..
brook ..
river bed le lit d'une rivière
spring  la source f.

Let's go bath in the hot springs.
..

puddle la flaque
mud boue
muddy boueux 
sunset ..
sunrise ..

The sun rises at 7am tomorrow.
..

The sun sets at 6pm today.
,,,