Production:3345

year	operator	production	cumulative	opening	depth	seam	thickness	method	days	emp
1882	Riverton Coal Co., No. 1	100,000		shaft	199	#5	6		12 mo	150
1883		160,000		shaft	200	#5	6		10 mo	150
1884		124,000		shaft	200	#5	6	RP	220	100-150
1885		117,000		shaft	200	#5	5.5	RP	233	150-175
1886		148,384		shaft	200	#5	5.5	RP	205	150-175
1887		107,198		shaft	200	#5	5.5	RP	166	100-175
1888		85,620							160	80-160
1889		89,937							164	100-150
1890		101,930							202	100-175
1891		61,557		shaft	200	#5	5.5	RP	83	100-125
1892		66,327		shaft	200	#5	5.5	RP	210	75-85
1893		116,392		shaft	200	#5	5.5	RP	282	103-130
1894		100,406		shaft	200	#5	5.5	RP	153	112-135
1895		116,564		shaft	200	#5	5.5	RP	147	106-128
1896		30,332		shaft	200		5.75	RP	90	19-61
1897		22,792		shaft	200		5.75	RP	70
1898		0		shaft	200	#5	5.75
1899		0
1900		56,231			230		5.75	RP	188	62
1901		87,288							220	70
1902		117,942							252	94
			1,809,900
1903	Springfield Coal & Mng. Co., No. 1	129,252		shaft	230	#5	5.75	RP	215	122
1904		144,135		shaft	230	#5	5.75	RP	232	118
1905		142,278		shaft	230	#5	5.75	RP	180	136
1906		143,873		shaft	230	#5	5.75	RP		135
1907		126,261		shaft	230	#5	5.75	RP	181	121
1908		140,621		shaft	230	#5	5.75	RP	176	96
1909		117,331		shaft	230	#5	5.75	RP	155	154
1910		0
1911		49,844		shaft	220	#5	6	RP	68	116
			993,595
			2,803,495