An A-frame is a tool used to determine landscape contour. It is simple and cheap to make, and appropriate to situations where other contour-mapping tools such as LiDAR or GPS are unavailable, impractical, or prohibitively expensive. It consists of three straight rods or planks, fastened together in the shape of a capital "A", with a plumb bob (weight) suspended from the apex. Markings on the cross-piece are compared to the plumb bob line to determine slope.

External links[edit | edit source]

FA info icon.svgAngle down icon.svgPage data
Authors Ethan
License CC-BY-SA-3.0
Language English (en)
Related 0 subpages, 4 pages link here
Impact 408 page views
Created April 2, 2016 by Ethan
Modified March 2, 2022 by Page script
Cookies help us deliver our services. By using our services, you agree to our use of cookies.