Colorado. Natural resources Mines yield over fifty millions in 1899.; state has other resources which aggregate more in value than mining. Times D 31, 1899 p1 c.1 . Chart giving extent and valuation of natural resources by county; metals, minerals, fuel and power, sports, farms, precious stones. Times D 31, 1898 t;.17 , Colorado Cattle and Horse Growers' Association wants protection of natural resources, rigid inspection timber sales. Mmes F 27, 1903 p.10 0