Congressional Budget Office Cost Estimate: S. 569, Land and Water Conservation Authorization and Funding Act [open pdf - 61KB]
From the Summary: "S. 569 would permanently authorize the annual deposit of at least $900 million from various federal sources into the Land and Water Conservation Fund (LWCF). The current authorization to make those deposits expired on October 1, 2018. The bill also would make the amounts deposited into the LWCF available to spend without further appropriation by the Department of the Interior (DOI) and the Forest Service to acquire land and to make grants to states to support outdoor recreation."
Congressional Budget Office: http://www.cbo.gov/