The manufacture of felt hats (product, 1905, $4,586,040, Newark ranking third in this industry among the cities of the United States), carriages, chairs and jewelry (an industry established about 1830; product, 1905, $9,258,095), developed rapidly early in the 19th century, and there are extensive manufactories of malt liquors (product, 1905, $10,917,003), and of clothing (product, 1905, $3,937,138), foundries and machine shops (product, 1905, $6,254,153), and large establishments for smelting and refining lead and copper, the product of the lead smelters and refining establishments being in 1905 the most valuable in the city.
Of zinc. This region now furnishes the bulk of the ore required by the smelters of Illinois, Missouri and Kansas.
The city is the commercial and financial centre of the state (Butte being the mining centre), and is one of the richest cities in the United States in proportion to its population, It has large railway car-shops, extensive smelters and quartz crushers (at East Helena), and various manufacturing establishments; the value of the factory product in 1905 was $1,309,746, an increase of 68.7% over that of 1900.
There are smelters and cyanide extracters in the district, but the bulk of the ore product is shipped to other places for treatment.
Other important manufactories are flour mills, of which there were over 500 in 1904; iron and steel works, of which there are 7 large establishments, including the immense plant at Monterey; 90 smelters for the reduction of precious metals; tanneries, potteries, and factories for the manufacture of hats, paper, linen, hammocks, harness and saddles, matches, explosives, aerated waters, soap, furniture, chocolate and sweetmeats.