Echo Mountain via Sam Merrill Trail is a 5.5 mile heavily trafficked out and back trail located near Altadena, California that features a river and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.
dogs on leash
Great Sunday after church hike, not to crowded and weather was prefect.
It's a decent trail. It will take you about 2.5 hours to do the entire loop.
Narrowness makes it hard to navigate with poles or packs. If you're training and packing heavy, I'd skip it. Also so busy that people don't really stop and would rather squeeze two ways of traffic in. Dangerous.
I hike to Echo from diffents ways its really amazing.