pathfinder

noun4

1. •
   One who discovers or makes a new path or way through an untraversed region.

   • The cow is the true pathfinder and pathmaker. — 1910
2. •
   (figurative) One who is the first to do something in a particular field; an innovator, a pioneer.
3. •
   Synonym of honey guide.
4. •
   Ellipsis of pathfinder prospectus.