OSHA Safety Signs

Mine Shafts Keep To Tracks And Trails

Blasting Area Blasting Personnel Only

No Entry Blasting In Progress

Keep Out Of Shaft Area When Skips Are In Motion

Blasting Keep Away

Caving Ground

Unstable Mine Shaft Do Not Enter

Open Shaftway

Firing In Progress

Unit Under Clearance

Overhead Hoist In Use Area Closed

Red Zone

Condemned Mine Shaft

No Entry Mine Workings

Keep Out Open Shaft

Notify Clearance Holders Prior To Unit Entry