Trail etiquette recommended by the Bridge River Valley Trails group (located in B.C):
​* Cyclists yield to Hikers and Horses
* Hikers yield to Horses
* Motorized vehicles yield to all other users

Their trail etiquette webpage has a list of tips for various trail users:
http://bridgerivervalleytrails.ca/trail-etiquette/
​

City of Whitehorse Trail Etiquette

• Leave no trace: Pack out what you pack in.
• Share the paths and trails: Bikes yield to pedestrians. Downhill yields to uphill.
• Mind your pets: Pick up dog waste and keep your four-legged friends under control.
• Be prepared: Tell someone where you are going when you head out on the trails.
• Be a good trail steward: Pass politely and say "Hi!"

Unfortunately, although we have asked for clarification as to what the City actually means by the phrase "Downhill yields to uphill", we have never received a response. Does it mean that the person located downhill on a trail yields to the person who is coming down a hill on the trail, or does it mean that the person located uphill on the trail yields to the person coming up the trail? Please note that different trail users may have different ideas as to whom is to yield.