Glacier Lake near Red Lodge along the Beartooth Highway on the Wyoming/Montana border in Custer-Gallatin National Forest

Glacier Lake, Little Glacier Lake, and Emerald Lake on the Beartooth Highway

Glacier Lake above the Beartooth Highway, Custer-Gallatin National Forest, Montana
Sunshine on Glacier Lake

My very first hike on the Beartooth Highway last summer was up to Glacier Lake. Actually, I wanted to do Moon Lake, too, but that turned out to be too much for one day, so now I have to go back (sighs happily while browsing for more hikes in the region). The whole area is gorgeous, so if you don’t mind a tough hike near Red Lodge (you haven’t even climbed up the switchbacks yet!), Glacier Lake is a great choice.

Quick Stats

Round Trip Length: 4.4-7.4 miles Trail Type: Out & back Elevation Gain: 1,540-2,009ft. Pets: Leashed Fees: None

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Fireweed and the Beartooth Mountains from the Glacier Lake Trail off the Beartooth Highway, Custer-Gallatin National Forest, Montana
Fireweed while climbing to Glacier Lake

I actually went beyond Glacier Lake to Little Glacier Lake and Emerald Lake – which is so worth the extra mileage (after all, you’ve gained all of the incredible amount of elevation at this point (don’t let anyone tell you this is an easy hike; it’s much harder than the mileage alone would suggest) so it’s not that hard to continue on the near-social trail). I also had a sunny sunrise, cloudy day, then more sunshine in the afternoon. My pictures reflect this, including watching the clouds lift – which was pretty incredible in itself.

Mountains above two signboards and a vault toilet at the Glacier Lake Trailhead at the end of Rock Creek Road along the Beartooth Highway, Custer-Gallatin National Forest, Montana, and Shoshone National Forest, Wyoming
The Glacier Lake Trailhead

0.0 Glacier Lake Trailhead (8,678ft.). The trailhead is equipped with a signboard and vault toilet and is situated on the Montana/Wyoming border. Head upward – the grade begins almost immediately, though it’s not terribly steep at first. As you rise, the trees taper off to give you spectacular views back down the valley. Keep your eyes open for waterfalls in the creek and wildflowers in summer. (45.0030100°, -109.5138050°)

Waterfall in Rock Creek along the Glacier Lake Trail, Custer-Gallatin National Forest, Montana
Waterfall in Rock Creek along the trail

0.6 Bridge (9,018ft.). The trail crosses the creek and begins a steep, switchbacking route up the side of the valley. The area is treed once again with limited views. (45.0069520°, -109.5170850°)

Bridge over the Moon Lake Outlet along the Glacier Lake Trail near the Beartooth Highway in Custer-Gallatin National Forest, Montana
The bridge over the Moon Lake Outlet

0.9 Moon Lake Junction on right (9,221ft.). This junction is unmarked; you’ll just see a path going off into the woods generally following the stream. The trail continues to rise precipitously, finally exiting the trees to climb up and over what I suppose could be called a hill. (Photo break)

Following the rock path down to Glacier Lake below heavy cloud cover in the Beartooth Mountains of Custer-Gallatin National Forest, Montana
Descending through the clouds down to Glacier Lake… not much in the way of views when it’s socked in!

At last, just when you think your body can’t handle going up any more, the path descends via a rocky (but still very much a trail) route down to the dam at the foot of Glacier Lake. As you descend, admire the waterfall below the dam. (45.0079980°, -109.5179830°)

The waterfall and valley below the Glacier Lake dam near the Beartooth Highway in Custer-Gallatin National Forest, Montana
Waterfall below the Glacier Lake Dam (I took this on our way back which is why it’s suddenly sunny)

2.2 Dam on Glacier Lake (9,694ft.). By this point, the clouds had moved in full-force. So we walked right and scrambled up onto some boulders above the lakeshore to eat lunch. A small group came along; they were looking for the remains of a plane crash, but the terrain on this side of the lake was much more rugged than they had expected. So they decided to see how far they could get and just enjoy the hike. We ate our lunch, hung out for a few minutes, and then headed back to the dam. (Photo break)

Clouds and just a little bit of sunshine over Glacier Lake in Custer-Gallatin National Forest, Wyoming
A hint of sunshine from the Glacier Lake dam

About this point, the sun began to break through the clouds. We crossed the dam and then followed a social path to the left as it headed up a grassy meadow studded with rocks and a few small fir trees. The path led into a forest and eventually popped out on the shore of another lake. (45.0079980°, -109.5179830°)

Clouds lifting over the mountains above Little Glacier Lake near the Beartooth Highway in Shoshone National Forest, Wyoming
Clouds lifting over Little Glacier Lake

2.7 Little Glacier Lake (9,728ft.). This is a lovely, rugged lake below towering cliffs. Two things of note happened here for me: 1) the sun began to come out in force, and the clouds lifted in neat wisps, and 2) a bald eagle was perched on a boulder across the lake. Both very neat! The path continued along the lake so – you guessed it – we kept on hiking. (45.0021230°, -109.5327870°)

The trail above the shore of Little Glacier Lake near the Beartooth Highway in Shoshone National Forest, Wyoming
The trail along Little Glacier Lake

3.9 Emerald Lake (9,736ft.). This is the last of the lakes in this area. We hiked to the end which really does have a good view (more rugged cliffs!) I also went beyond the end of the lake up a rough hillside to try and get a view down the valley, but alas, that didn’t work so well. So definitely just enjoy the lake, turn around, and head back to Glacier Lake – and from there, retrace your steps to the parking lot! (44.9990840°, -109.5222570°)

Reflections in Emerald Lake near Glacier Lake and the Beartooth Highway, Shoshone National Forest, Wyoming
Emerald Lake

Overall? This is one steep and hard trail! But it’s gorgeous just about all the way with mountain views, so it’s a great option if you want a challenge near Red Lodge!

Little Glacier Lake and Glacier Lake in the Beartooth Mountains of on the Wyoming/Montana border
Little Glacier Lake (and a peek to Glacier Lake) while walking back from Emerald Lake

Round Trip Trail Length: I went 7.4 miles including all of my exploring. Just to Glacier Lake and back is 4.4 miles.

Elevation Gain: 2,009ft. (8,709ft. to 9,909ft.) (1,540ft. to just visit Glacier Lake with the same elevation extremes)

Purple harebell flowers still covered in dew along the Glacier Lake Trail in the Beartooth Mountains of Montana
Harebell flowers with the dew still clinging to them

Facilities: Vault toilet at the trailhead; dispersed camping along the road to the trailhead

Fees: None

A hiker pauses beside wildflowers on the Glacier Lake Trail to look at the Beartooth Mountains in Custer-Gallatin National Forest/Shoshone National Forest on the Montana/Wyoming border
A hiker stops to look at the view on our way up the Glacier Lake Trail – this was before the sun went under the clouds

Trail Notes: This is one steep, hard hike! (At least it has a beautiful reward at the end!) The number of people I saw struggling was significant. Most of the hike is fairly exposed, so be wary of sunburn and electric storms. While this trail begins below the more famous part of the Beartooth Highway, it compares quite favorably with the hikes “up top.” One thing I have not mentioned yet is the road… it’s rougher than I would have expected. High clearance is appreciated, though you probably could get up it with a lower clearance vehicle if you drove very slowly. One of the really fun things about this hike is that you park your car in Wyoming, cross almost immediately into Montana, spend the entire hike up to Glacier Lake in Montana, and then cross back into Wyoming to walk up to Little Glacier Lake. When you’re in Montana, you’re in Custer-Gallatin National Forest, and when you’re in Wyoming, you’re in Shoshone National Forest.

A few clouds over Glacier Lake on the Montana/Wyoming border in the Beartooth Mountains
Glacier Lake in the sunshine

Trail ★★★☆☆

Road ★★★☆☆

Signs ★★☆☆☆

Scenery ★★★★★

Would I go 100 miles out of my way for this? ★★★★★

Overall Rating: ★★★½☆

A bald eagle on a rock near Little Glacier Lake, Shoshone National Forest, Wyoming, along the Beartooth Highway
The bald eagle on the other side of the lake – one of those moments when I’m thankful for a 400mm zoom lens!

GPS Coordinates for Glacier Lake, Little Glacier Lake, and Emerald Lake

TH: 45.0030100°, -109.5138050° (45°00.18060′, -109°30.82830′ / 45°00’10.8360″, -109°30’49.6980″) (8,678ft.) (0.0)

Bridge: 45.0069520°, -109.5170850° (45°00.41712′, -109°31.02510′ / 45°00’25.0272″, -109°31’01.5060″) (9,018ft.) (0.60)

Clouds over the Beartooth Mountains and Little Glacier Lake in Shoshone National Forest, Wyoming
Lifting clouds over Little Glacier Lake

Moon Lake Junction: 45.0079980°, -109.5179830° (45°00.47988′, -109°31.07898′ / 45°00’28.7928″, -109°31’04.7388″) (9,221ft.) (0.88)

Dam: 45.0054410°, -109.5326740° (45°00.32646′, -109°31.96044′ / 45°00’19.5876″, -109°31’57.6264″) (9,694ft.) (2.20)

Purple fireweed flowers on the shore of Little Glacier Lake in the shadow of the Beartooth Mountains of Wyoming
Fireweed along Emerald Lake

2nd Lake (Little Glacier Lake): 45.0021230°, -109.5327870° (45°00.12738′, -109°31.96722′ / 45°00’07.6428″, -109°31’58.0332″) (9,728ft.) (2.72)

Emerald Lake (should be the end): 44.9990840°, -109.5222570° (44°59.94504′, -109°31.33542′ / 44°59’56.7024″, -109°31’20.1252″) (9,736ft.) (3.88)

End: 45.0030310°, -109.5138580° (45°00.18186′, -109°30.83148′ / 45°00’10.9116″, -109°30’49.8888″) (8,678ft.) (7.37)

Mountains over Little Glacier Lake in the Beartooth Mountains of Wyoming
A hiker beside Emerald Lake

The gpx file for Glacier Lake, Little Glacier Lake, and Emerald Lake can be downloaded – please note that this and the GPS Coordinates are for reference only and should not be used as a sole resource when hiking this trail.

Download GPX File size: 185.0 KB Downloaded 25 times

(Note: I do my best to ensure that all downloads, the webpage, etc. are virus-free and accurate; however, I cannot be held responsible for any damage that might result, including but not limited to loss of data, damages to hardware, harm to users, from use of files, information, etc. from this website. Thanks!)

The Beartooth Mountains over Emerald Lake at the end of the Glacier Lake Trail in Shoshone National Forest/Custer-Gallatin National Forest on the Wyoming/Montana border
At the head of Emerald Lake

Getting to the Glacier Lake Trailhead off the Beartooth Highway

Get directions on Google here.

From Red Lodge, Montana, head south (toward Yellowstone) for 12-ish miles. Turn right onto the Main Fork Rock Creek Road (it is marked) for 0.9 miles, then continue left on the Main Fork Rock Creek Road for another 7.7 miles to the end of the road. There are some dispersed campsites along the trek. I was facinated that we passed the turnoff for the Hellroaring Plateau Road, which is only suitable for 4×4, but I took a gorgeous hike up Mount Rearguard from there many years ago!

Visual trail map and elevation profile for Glacier Lake, Little Glacier Lake, and Emerald Lake in Custer-Gallatin National Forest, Montana, and Shoshone National Forest, Wyoming
Visual trail map and elevation profile for Glacier Lake, Little Glacier Lake, and Emerald Lake

Interactive Trail Map

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Photo collage of views along the Glacier Lake Trail to Glacier Lake, Little Glacier Lake, and Emerald Lake in Custer-Gallatin National Forest and Shoshone National Forest on the Montana/Wyoming border

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