INTRODUCTION: Although Indiana has abundant limestone resources available for producing lime, these resources have not been used for commercial production since 1953. Some insight into this seeming paradox can be gained through an analysis of the history, the present status, the probably future, and the economics of lime production in Indiana. Indiana's lime industry has not been well documented, and no comprehensive study of lime production in Indiana has been written since 1938. W.S. Blatchley, Indiana state geologist from 1895 to 1910, wrote about the lime industry of Indiana in his annual report for 1903. He briefly outlined the general nature of lime, its uses, Indiana's mineral resources, and the methods of burning lime. He described the past and present production of lime in Indiana and the plants active at the time: their location, resources, costs, and production. In the "Handbook of Indiana Geology" (1922), W.N. Logan presented a similar outline of lime production in Indiana. He described the nature and uses of lime and listed the lime-producing centers in Indiana and the chemical analyses of the stone being used. He also gave a brief history of lime production in selected areas. In 1938 G.F. Fix outlined the possibilities of producing lime in Indiana and estimated that Indiana could produce far more lime than it was producing from its bundant resources. In a report on high-calcium limestone and high-magnesium dolomite, L.F. Rooney (1970) presented an evaluation of rocks in Indiana suitable for producing lime.