Definition of "well-marked" []

• In zoology and botany, pronounced; decided; obvious; signal; easily recognized or determined: as, well-marked characters; a well-marked genus, species, or variety.
• Specifying a South African tor toise, Homopus signatus.

The Century Dictionary (Public Domain)

• "Now if you must go on to Tepic (my favorite city in Mexico) the periférico on the west -- called Libremiento -- bypasses the city almost entirely and on the South end there is a well-marked exit to the right to Puerto Vallarta."
• "Take the well-marked next exit after your return to the toll road, for Sangabriel and Chilac."
• "Long, well-marked expansion bridges showcase the valleys and mountains."