Hand Level

[Amber Gold]

For anybody interested, Ben Meadows carries hand levels with a protractor on them that allows the level to be used to set slopes, elevations, and measure the height of trees. This is the cheapest model:

http://www.benmeadows.com/search/hand+level/23031/101740/?isredirect=true

This would be pretty handy to set and check slopes on mainline.