The document is an operation plan and proposed expansion for the Ellett Rock Quarry located near The Dalles, Oregon. It provides details on the quarry's history, location, topography, mining areas, and plans to expand operations while meeting scenic resource protection requirements. The plan proposes expanding mining into 4 additional areas totaling 4.44 acres, while reclaiming 2.08 acres to maintain a total operational area of 13.11 acres. Screening methods like retaining landforms and planting trees are intended to ensure the expanded quarry remains visually subordinate from key viewing areas.