Mills Lake Hike – Colorado’s Rocky Mountain National Park – Trail Map, Pictures, Directions & More

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Article Categories: Hiking


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Mills Lake is yet another beautiful alpine lake located in Rocky Mountain National Park, Colorado. The lake sits at 9,940 feet, making this a great moderate hike with stunning views of the surrounding mountains. This is a great hike in all four seasons.

Difficulty – Intermediate
Distance – 5.6 miles miles round trip (9.01 km)
Height – 9,940 feet (3,029.7 meters)
Elevation gain – 780 feet (237.7 meters)
Duration – 3 to 5 hours (book time)
Seasons – Year-round
Trailhead Location – Glacier Gorge Trailhead or Bear Lake Trailhead

Need to know: Dogs are not allowed in Rocky Mountain National Park.

 

Trail Map

Mills Lake Colorado Trail Map

Mills Lake Colorado Trail Map

 

Trails

There are two common starting locations for this hike, both are below:

 

Glacier Gorge Trailhead | 5.6 Miles| 780 Feet Elevation Gain

This is the most common path to head towards Mills Lake. If the parking lot is full, just continue on to Bear Lake Trailhead, park, and begin hiking from there.

Beginning at Glacier Gorge, hikers will travel .25 miles to the first junction of the Glacier Creek Trail, and the trail leading to Bear Lake. Hikers bear left, following the signs to Alberta Falls and Sky Pond.

.8 miles into the hike, hikers will reach Alberta Falls, a beautiful 30 foot waterfall that is extremely popular in summer months. The trails will have less people (but still quite a few) beyond this point.

1.6 miles into the hike, hikers will reach the North Longs Peak Trail Junction where hikers will need to bear right towards Sky Pond.

2 miles in, hikers will reach Mills Junction. To the left is Mills Lake and Black Lake, hikers will turn left here. Bearing right would bring hikers towards Sky Pond and Andrew’s Glacier.

A short distance after turning, hikers will cross Glacier Creek. Near the crossing, there is a side trail that will take hikers to a gorgeous little waterfall. Only .6 miles from the junction (2.6 total miles in), hikers will reach Mills Lake. The trail continues along further, and hikers should walk along to get some nice vantage points of the lake.

Retrace the path back to the parking lot from here. Hikers may also choose to continue on to the beautiful black lake, or take some detours on the way back.

 

Bear Lake Trailhead | 5.8 Miles | 800 Feet Elevation Gain

This route is only slightly different than starting at Glacier Gorge. The only difference is the first .4 miles. Here this trail descends to cross paths with where hikers will have started from Glacier Gorge. This portion of the trail is heavily trafficked year round. This route will add just a tiny bit of elevation gain, and .2 miles to your overall round trip. We recommend starting from Bear Lake if the Glacier Gorge trailhead has no parking.

 

Hiking Mills Lake in Winter

Mills lake is stunning in winter. The amount of people on this trail dissipates in winter making it very enjoyable. The trail, views, and lakes look entirely different as well. Traction is highly recommended (microspikes or snowshoes). Most of the trail is fully manageable without traction, but as always, traction should be brought for caution. Snowshoes may be needed during certain times of year and is defendant upon snowfall.

Both trailheads are open and can be driven to in winter months due to Bear Lake Road being nicely maintained. Check park road closures during snowy times to be sure.

 

Fishing Mills Lake

Mills lake has quite a solid population of brook trout and greenback cutthroat trout. This is a great fishing spot in summer months.

 

Directions & Parking

These are two large parking lots (bear lake trailhead the biggest), but these are extremely popular areas. Parking fills up extremely quickly on nice days. In many cases, hikers will need to use the National Park shuttle system to get to these trailheads during the busy months. Information on this can be found here: https://www.nps.gov/romo/planyourvisit/shuttle_bus_route.htm 

 

To Glacier Gorge Trailhead

To Bear Lake Trailhead

Continue along bear lake road for .9 additional miles and you will reach the trailhead. This is the end of Bear Lake Road.

 

Current Weather Conditions

Here is a detailed weather forecast:

Allenspark, CO

Tonight
Blowing snow and a slight chance of snow. Mostly clear. Low around 2, with temperatures rising to around 12 overnight. Wind chill values as low as -20. West southwest wind 25 to 33 mph, with gusts as high as 51 mph. Chance of precipitation is 20%.

Saturday
Patchy blowing snow before 11am, then areas of blowing snow and a chance of snow. Partly sunny. High near 23, with temperatures falling to around 21 in the afternoon. Wind chill values as low as -7. West southwest wind around 26 mph, with gusts as high as 40 mph. Chance of precipitation is 40%. New snow accumulation of 1 to 3 inches possible.

Saturday Night
Areas of blowing snow and a chance of snow. Mostly cloudy. Low around 19, with temperatures rising to around 22 overnight. West southwest wind 24 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 40%. New snow accumulation of around one inch possible.

Sunday
Patchy blowing snow before 5pm, then patchy blowing snow and a slight chance of snow. Mostly sunny, with a high near 27. West southwest wind 22 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

Sunday Night
Patchy blowing snow and a slight chance of snow before 11pm, then snow likely and patchy blowing snow. Mostly cloudy, with a low around 20. West wind around 29 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Monday
Snow likely. Mostly cloudy, with a high near 23. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Monday Night
Snow likely. Mostly cloudy, with a low around 14. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

 

Additional Pictures

Trail Sign on Loch Vale Trail to Sky Pond

Trail Sign on Loch Vale Trail to Mills Lake

Mills Lake Views

Mills Lake Views

Trail Views to Sky Pond

Trail Views to Mills Lake

Views from The Loch (Loch Vale)

Trail Views Heading Towards Mills Lake

Alberta Falls (Winter)

Alberta Falls (Winter)

Max DesMarais
Max DesMarais

Max DesMarais is the founder of Hiking & Fishing. He has a passion for the outdoors and making outdoor education and adventure more accessible. Max is a published author for various outdoor and marketing websites. He is an experienced hiker, backpacker, fly fisherman, trail runner, and spends his free time in the outdoors. These adventures allow him to test gear, learn new skills, and experience new places so that he can educate others. You can read more about him here: hikingandfishing/about

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