Reopening an abandoned Tri-State Zinc Mine - Waco, Missouri

Early in the year of 1937, the company employing the writer decided to reopen an old mining property located in Kansas, one and one-quarter miles west of Waco, Missouri. This property is known as the Grasselli No. 1, the lease of which had been acquired a short time prior to the depression of 1930. This property had been extensively mined on upper levels (195-foot, 176-foot, and 150-foot) by former operators and was a noteworthy producer of sphalerite. It was worked from the time of the beginning of the World War until about 1928. The lowest level, 285-foot, had hardly been well opened when, for reasons of the operators, this mine was shut down. It is upon this level that future mining is to be done --Introduction, page 4