pathfinder

noun

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

   “The cow is the true pathfinder and pathmaker.”

   “Sorry and frightened, this man was their pathfinder across fields.”

   “Pathfinders are trained to improve the viability of potential planets, initiate first contact with unknown species, find suitable outpost sites, and handle any external threats before the first colonist touches soil. The presence of a Pathfinder is a reassurance that a planet can be settled safely and with a high expectation of success.”

2. (figuratively)One who is the first to do something in a particular field; an innovator, a pioneer.
3. Synonym of honey guide.
4. (abbreviation, alt-of, ellipsis)Ellipsis of pathfinder prospectus.