Star Tribune 1870, May 29, p. 2

   –  The Belle Plaine Salt Company are making rapid progress with the works which they are constructing at that point for the manufacture of salt. They have sunk their pipe or tube about a hundred feet, and are sinking it, with their excellent machinery, at the rate of ten feet per day. They expect to sink it a thousand feet in all, below the surface. The work is under the charge of a practical salt manufacturer from Syracuse. The indications are considered by experts from Syracuse as extremely favorable for reaching a rich deposit of brine. The Belle Plaine Salt Company, of which Mr. Sanford A. Hooper of that place is President, and R. H. Rose Secretary and Treasurer, was organized last winter with a capital of $15,000, upon which two installments of 10 per cent each have been assessed and paid, and received from the legislature a portion of the lands donated to the State by Congress, for the development of its salt springs. The grant is a section for every one thousand six hundred dollars actually extended, up to the six sections donated to each salt spring. The success of this enterprise will build up a most useful and important branch of industry in our State, add very considerably to the resources of the State, and cheapen the price of salt to our farmers. The Belle Plaine salt works will soon divide with those of Syracuse in New York and those of Saginaw in Michigan the business of supplying the salt market of the Mississippi valley, and, so far as Minnesota is concerned, will relieve us of the heavy tax now paid on the transportation of this bulky commodity from those distant sources of supply.