The Big O: IA Lessons from Orienteering
http://www.boxesandarrows.com/archives/the_big_o_ia_lessons_from_orienteering.php

Smith, Gene
Boxes and Arrows
2002

Abstract:

Several orienteering strategies - including map simplification and contact, navigating by checkpoints, rough and precise map reading, and using attack points to find the goal - have useful IA parallels. Gene Smith explores how IAs can learn from these parallel techniques and create digital spaces that are easier to navigate.