http://www.serebii.net/pokearth/maps/unova/39-3f.png

http://www.serebii.net/blackwhite/pokemon/530.png
Excadrill
Level 54-57

http://www.serebii.net/blackwhite/pokemon/095.png
Onix
Level 54

http://www.serebii.net/blackwhite/pokemon/208.png
Steelix
Level 57