Dales
valley of the kings
Ria
luvy
An 8 letter word for booms is thunders.As in "the sound thunders through the valley".
ravine
Pass
dell, glen
Glen is the word for a long, narrow valley. It traces its origin to 15th century Scottish Gaelic word Gleann.
cwms (Welsh for Valley(s))
dell
Daily is a good word for a 5 letter word for everyday.
small 5 letter word