Mountains are the Sources of Springs and Rivers
Source: TTT
Deuteronomy 8:7
For the LORD your God is bringing you into a good land, a land of brooks and fountains and springs that flow through the valleys and hills;
Psalm 104:8–10
the mountains rose and the valleys sank to the place You assigned for them— / You set a boundary they cannot cross, that they may never again cover the earth. / He sends forth springs in the valleys; they flow between the mountains.