How much is a 50 ft black walnut tree worth today?

Could someone please provide an estimate of the current market value for a 50-foot black walnut tree? I'm curious to know what factors might influence the pricing, such as the tree's age, health, location, and demand for its timber or nuts. Additionally, I'd appreciate any insights on the potential growth or decline in value for such trees in the future, given the current trends in the forestry and lumber industries.