Mine for it. Its essentially God's geographic lottery that will allow you to mine for salt. The other option is to essentially make table salt, but if you are willing to do this than I imagine it would be more practical to purchase it.
Those who hammer their swords into plows will plow for those who don't!
Mine! Mine! Mine! Here, you can have this tiny ad:
try a month in the "gardening gardeners" program to see if it soothes your soul