Retirement Obligation Asset

9 Months Ended

Sep. 30, 2019

Asset Retirement Obligation Disclosure [Abstract]

Following is a reconciliation of the aggregate retirement obligation asset associated with our mining reclamation plans:



	Nine Months Ended			Twelve Months Ended
	September 30, 2019			December 31, 2018
Retirement obligation asset — beginning of period	$	203,274		$	282,745
Additional obligations incurred	—			—
Amortization of retirement obligation asset	(50,818		)	(79,471		)
Retirement obligation asset — end of period	$	152,456		$	203,274

Long-Term Reclamation Liability

Following is a reconciliation of the aggregate reclamation liability associated with our reclamation plan for our mining projects:



	Nine Months Ended			Twelve Months Ended
	September 30, 2019			December 31, 2018
Long-term reclamation liability — beginning of period	$	7,441,091		$	7,417,680
Additional obligations incurred	—			—
Reduction of obligation	(410,018		)	—
Accretion of reclamation liability	17,130			23,411
Long-term reclamation liability — end of period	$	7,048,203		$	7,441,091

Reclamation Liability Reduction by NDEP

On April 30, 2019, the Company was notified by the Nevada Division of Environmental Protection ("NDEP") that the Company's successful reclamation of parts of the Lucerne mine area had reduced the Lucerne project reclamation cost estimate with an updated reclamation bond requirement of $6.8 million. Our total reclamation liability also includes cost estimates for our Dayton project and enhanced reclamation obligations in Storey County.