- Psychoactive drug (Wikipedia)
A psychoactive drug, psychopharmaceutical, psychoactive agent or psychotropic drug is a chemical substance that changes functions of the nervous system, and results in alterations in perception, mood, cognition, and behavior.
- when you get near Oso on the way to Darrington, turn left on Lake Cavanaugh Road to visit Deer Creek where jade (nephrite) can be found.