California Code, Public Resources Code - PRC § 2773.2

The mineral owner and owner of the surface estate, if legally entitled to do so, shall allow access to the property on which the mining operation is located to any governmental agency or the agent of any company providing financial assurances in connection with the reclamation plan and expending those financial assurances for reclamation, in order that reclamation may be carried out by the governmental agency or company, in accordance with the reclamation plan.