Idlehour Trail

HARD 21 reviews
#5 of 5 trails in

Idlehour Trail is a 18.4 mile lightly trafficked out and back trail located near Altadena, California that features a river and is rated as difficult. The trail is primarily used for hiking, walking, nature trips, and birding and is best used from March until October. Dogs are also able to use this trail but must be kept on leash.

18.4 miles
5449 feet
Out & Back

dogs on leash



nature trips





wild flowers

1 month ago

1 month ago

2 months ago

3 months ago

I love challenges every hike is fun.

4 months ago

5 months ago

this trail is awesome, and have amazing view of Mt. Wilson and a awesome camp ground. everything about it is awesome. I recommend it to every level hiker, just give a try. make sure you have a great camera. I am sure I will do it again!

9 months ago

This trail is stunning! The first few miles are a climb in direct sunlight along a rocky mountainside trail. Eventually you get into the gorgeous forest and start a mild decline. The floor of the forest was covered in fallen leaves and has amazing rock formations and lots of shade. Then you get back out onto the mountainside and start another climb. The views of the mountains are simply breathtaking. You get a good workout both directions as each way has a pretty decent incline. I will definitely do this one again. It's fairly rugged in spots and I wouldn't recommend it for beginners or people who aren't comfortable on narrow trails with a steep drop.

9 months ago

10 months ago

Monday, May 30, 2016

Monday, May 16, 2016

Monday, May 16, 2016

Friday, May 13, 2016

Saturday, April 02, 2016

Monday, January 11, 2016

Friday, December 18, 2015

I did this trail with my adventure pup and we had a great time. Lot's of wildlife since it's not a well traveled trail. I saw a small group of guys coming out from the camp. Trail was in good condition, water was in the creek at the campground when i was there in July, it even drizzled while i was on the fire road!

Sunday, October 25, 2015

Oct 2015, Lots of shade. Leaves starting to turn/drop. Didn't meet anyone on trail. Lots of gnats/small flies at bottom. Bring bug spray.

Saturday, June 14, 2014

Monday, March 03, 2014

My favorite trip when I was a kid in the 60s. Dennis Mathews and I hiked in and out via the Mt. Wilson Toll Road and camped at the trail camp on more occasions than I can remember. If the water's running in the stream and you know where to look, there's a sweet little waterfall near the trail camp.