At the turn of the twentieth century, the township had had a
smelter and railway connection with the North Mount Lyell mine. The North Mount Lyell smelters failed, despite attempts in 1901 and 1902 to correct issues. Initially,
reverberatory furnaces were used, then
water jacket furnaces were tried. The furnaces were broken further in an attempt to fix and were eventually left. The company was absorbed by the
Mount Lyell Mining and Railway Company in 1903. The townsite soon lost population after the failure of smelter operations. The
North Mount Lyell Railway which serviced Crotty's connections with
Gormanston,
Linda and
Pillinger (Kelly Basin) remained in service for a couple of decades before closing. Most historical photos of Crotty show the smelters, the hotels, and the very small houses/huts. The most iconic photograph is that found in
Geoffrey Blainey's
The Peaks of Lyell, dated 1902, which was taken from the embankment just east of the railway line, looking west, up the main street with the smoke from the smelter in the air, and Mount Jukes in the background. ==Hydro dam era==