Favored gear manufacturer Gossamer Gear (website) published a great post on Leave No Trace Behind. My backpack = Gossamer Gear Mariposa 60L (review).
For all hikers, the above post is worth the read, and further reading can be found below:
The non-profit organization behind it. https://lnt.org
Ethical hiking from Wilderness Society https://www.wilderness.org/articles/article/outdoor-ethics
US BLM as well https://www.blm.gov/outdoorethics