Valley is an iconic sign. To sign valley, hold both hands open and flat, palm sides facing out, and starting at head level. Slope both hands downward in unison until they meet at the bottom center in front of you, around chest level. This represents a valley found between two mountains.
Teach your baby or toddler the valley sign in context, when you are out camping, resting on a mountain top or hillside, and you see a beautiful valley before you on the horizon.
Teach this sign in conjunction with other nature or land and water flash cards, especially if you are visiting a nice valley as a family.