Research methods: Inexpensive Jacob's staff with laser sight
This paper provides information on the construction and use of an inexpensive fiberglass Jacob's staff and laser sighting device. Laser technology can facilitate high-precision sighting over long and short distances when measuring stratigraphic sections.
Geography, Geology, and Planning
Evans, Kevin R. "Inexpensive Jacob's staff with laser sight." Journal of sedimentary research 72, no. 3 (2002): 449-450.
Journal of Sedimentary Research