How can we make our back of home-hillside manageable?

Cathi Book
by Cathi Book
We have a large expanse of hillside behind our home where nothing will grow & it is extremely costly to cover with mulch. (It is bordered by large Pine Trees) The mulch tends to slide off the hillside especially when it rains and then weeds creep in. It is very frustrating. How can we make this area manageable and less costly to maintain?
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