This page contains information and forms pertaining to Limited Mining Operations (LMOs). LMO’s are mining operations, “whether commercial or noncommercial, for the removal of sand, gravel, scoria, limestone, dolomite, shale, ballast or feldspar from an area of fifteen (15) acres or less of affected land, excluding roads used to access the mining operation…” (W.S. 35-11-401(e)(vi)).
Click on the tabs above for forms, various guidance documents, annual reports, and external links to information on specific topics related to LMOs.
Please note that the applicant must also obtain a WDEQ Air Quality Division (AQD) construction permit or a permit waiver before commencing any mining related disturbance or activity. Please contact AQD for further information regarding Air Quality permit or waiver process requirements. Also, note that the applicant must contact the WDEQ Water Quality Division (WQD) to obtain authorization for storm water discharge before commencing any mining related disturbance or activity. Additionally, revised legislation concerning LMOs in Wyoming (Enrolled Act No. 19 Senate) went into effect on July 1, 2013. The revised legislation can be viewed by clicking on the "Related Links" below.