Explore Mammoth - view hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

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hiking
19 hours ago

Nice short hike to lake sherwin and back. Took about 1.5 hrs out with some short stops and 50mins return.... downhill.

Maybe I was having an "off" hike. I found this trail to be very difficult to follow. I got to a point of the trail where the only option to go would have been to scale a very sandy and steep hill, I would've taken that route had I not been with my 60 lb dog. If that was the true route to go, I would not call this trail a dog-safe trail. Unfortunately we had to turn around.

Short, but steep hike to a very pleasant lake. I would rate this as hard due to the steep grade. The lake itself is wonderful - a lot of people were swimming in the lake during my visit.

Amazing Views of Lake Mary, Lake George and at the end the lovely Lake Crystal.
This is a moderate hike with some great elevations, so if you are a beginner then consider this a hard hike ( not for distance , but only because of elevation and lots of curves )

hiking
8 days ago

Very nice stream running next to the trail. I was rather disappointed with the condition of the lake. It has been stagnant for quite some time and it not ideal for swimming.

Great views and very relaxing once at the lake

hiking
8 days ago

Beautiful hike. Moderate but challenging because of the altitude. A little smokey at the beginning because of the fires, but cleared up before we got to Crystal Lake. Cool, clear water with a few people jumping off rocks into it. Saw a few people with fishing poles too and they all said they weren't having any luck. Seemed to take about an hour and 15 minutes to get up there. This was with many stops and a really slow pace.

hiking
10 days ago

Great hike beautiful lake!

hiking
13 days ago

Did this hike with my two kids 8 and 3 and they loved it! Beautiful lake!

The elevation gain happens fast. And the lake is at 9800 feet, so prepare to be winded.

hiking
15 days ago

For starters you have to drive all the way through Coldwater Campground for parking. Restrooms are available. make sure to go early because parking does fill up quickly. Beautiful short hike with small side trails to walk along the creek. Hike is about .75 miles both ways (1.5 miles). Dog Friendly as well.

great day hike an easy-moderate trail, not too stip. Both lakes are amazing and so many different landscapes! great day

hiking
16 days ago

Great hike, very beautiful.

Beautiful!!

We did this with a group of about 20 friends ranging from 50 to 5 years of age all of us in different levels of fitness. It’s not as easy as Devils Postpile but it’s beautiful. The trails are steep and if your not used to the elevation can make it that much more challenging. We packed up a few poles in hopes to get a golden trout and a few brought swim wear. It was amazing but for a 38 y.o. Who does light waking a few times a week I was winded but my camelbak was my best friend and Motrin was my best friend the next day. Enjoy!!

hiking
19 days ago

Awesome hike. Well marked and worth going to the top to see Valentine Lake. 10.2 miles with 1925 feet of elevation. Not crowded and no smoke today.

FIVE STARS FIVE STARS!! The lake is absolutely stunning and the hike was very easy/moderate. It is also dog friendly so I would pack your pup, a lunch, and maybe even a couple beers and soak in the view for a while when you get up there! Gorgeous!

Great trail !

hiking
20 days ago

On our first afternoon camping at Lake Mary, we ventured up the trail to Crystal Lake. With hiking and meandering around the lake, we logged about five miles. The trail to the lake and back is shorter but a steep climb. The views of the Mammoth Lakes are increasingly rewarding the higher you go, especially at the crest when veering left before approaching the lake. Crystal Lake is pristine and worth the light hike around it, too. There was an abundance of wildflowers blooming, especially on the south end of the lake.

What a gorgeous, enjoyable trail. I was very challenged by it, coming from sea level 2 days before. Views were stunning, though a little hazier than usual because of the many wild fires in CA.

hiking
21 days ago

Harder for less experienced hikers, elevation gain can be intense. Took our two year old up in a carry pack and it was well worth the views! Beautiful views of George, Mary and a glimpse of Horseshoe Lake along the way. We found a spot on the rocks and the water was ice cold- perfect after the hike! My toddler loved eating her lunch here and then wading in the water. Worth it.

hiking
21 days ago

Easy hike to do with kids. Beautiful lake, good for swimming etc.

23 days ago

Beautiful hiking trail parallel to a small stream, with wildflowers next to the bank, that was running in late July.  Trail has a lot of rocks and tree roots, and is a good climb uphill that I don't know if it ever really leveled off. At the halfway point, there is a fork in the path off to the right to hike to Lake George. Once you arrive at Emerald Lake, if you walk a little bit farther up the path, there is a trail sign pointing to another trail off to the right to a meadow that is only 1/4 mile up the trail. This trail is along the stream, again with many wildflowers.

Amazing trail!! Really worth it. First part, up to sherwin lake is ok, I would say it’s easy and some beautiful views.
From Sherwin to Valentines is awesome!! Beautiful and variate landscapes!
The last part is tough! All way up to the hill (after a few miles hiking), but the price when you reach valentines lake, absolutely worth it.
I really recommend this hike!!
We readed that there were a lot of mosquitos. Fortunately we only saw a few, anyway, I recommend using some Mosquito repellent.
* Our gps watch marked 10.2 miles

(we did the hike on 21/07/2018)

backpacking
25 days ago

Bring a fishing pole! Trail is a bit longer than what is listed on AllTrails.

A short but sweet hike with a nice lake at the top, I'd recommend continuing onto Sky Meadow if you feel up to adding another 2 miles!

Took my 2 daughters, 9 and 10, and they were troopers and hiked up to Crystal Lake. We started around 1, took some rests, ate a snack at the lake, heard some thunder and watched some lightning on the way down, and it took us about 2 hours. If you go on a summer afternoon be prepared for thunderstorms! But it was a pretty hike, nice lake views along the way, and a beautiful destination.

hiking
29 days ago

Great short hike with fantastic views. Lots of shaded areas to rest. Bring your swimsuit for the end!

Awesome hike up to a gorgeous lake. It is steep uphill but downhill is a breeze!

Great hike....loved it but very steep, what a beautiful lake and a small stream on the back side of the lake! Lots of bugs and warm this time of year...

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