Top 15 Natural Monuments in San Juan County
Best natural monuments in San Juan County feature a landscape characterized by high-altitude lakes, prominent mountain peaks, and significant river systems. This region offers diverse natural features, including alpine environments and challenging trails. Visitors can explore a variety of geological formations and water features. The area provides opportunities to experience mountainous terrain and scenic viewpoints.
Best natural monuments in San Juan County
- The most popular natural monuments is Ice Lake, a lake that is surrounded by the peaks of…
Last updated: July 7, 2026
Ice Lake
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Little Molas Lake
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Island Lake
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Clear Creek Waterfall
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Animas River
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Columbine Lake
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Engineer Mountain
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View on Grenadier Range
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Rio Grande Headwaters
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Cinnamon Pass
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Popular around San Juan County
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Tips from the Community
This humble stream is the headwaters of the Rio Grande. Here, at the base of Canby Mountain, this stream will grow and transform into the 4th longest river in the United States, stretching 1,896 miles bordering Texas and Mexico till it reaches its endpoint in the Gulf.
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Cinnamon Pass is part of the iconic Alpine Loop. From here, you will enjoy a stunning view over the San Juan Mountains, especially Handies Peak, one of the Colorado 14ers. There is some old mining equipment in the area and you can most likely see some deer up here.
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Cinnamon Pass, located within the San Juan Mountains, stands at an elevation of about 12,640 feet. This high mountain pass offers panoramic views of the surrounding peaks, as well as old mining remnants.
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Little Molas Lake is a high-altitude body of water at about 11,000 feet. It is located nearby parking lots and provides easy access to the Colorado Trail. It is the ideal place to enjoy a packed lunch before or after your ride.
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Island lake is a cerulean-blue alpine lake nestled just north of Ice Lake below Grant Peak. This is one of the best views you will get in the Ice Lakes Basin.
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At 12,968 feet, Engineer Mountain doesn't quite qualify as a Colorado 13er. That being said, it is one of the most unique and fun mountains in the San Juans. The ridge up to the summit involves some class 2 and class 3 moves, but the route is clear and easy to follow. This is a great route to introduce someone to class 3 travel, and you are not lacking any views once you reach the summit.
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Little Molas Lake is a small body of water found off the Colorado trail. At 11,000 feet, the lake is surrounded by beautiful mountains. There is a picnic area along the banks of the lake, so it is a great place for a break to enjoy the peaceful surroundings.
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This is a perfect spot for a picture postcard view of the Grenadier Range: You can see Garfield Peak, Greystone Peak, Electric Peak with Arrow Peak, Vestal Peak and Trinity Peaks in the background (from right). The Grenadiers and Needles are the only places in the San Juans where the basement rock withstood the range's period of volcanism. The range was uplifted around 70 million years ago. During the San Juans' period of volcanic activity, nearly the entire surface was covered with layers of lava and ash flows, but the volcanic flows would only lap at the Grenadiers' feet.
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Frequently Asked Questions
What natural features can I explore in San Juan County?
San Juan County is characterized by its stunning alpine environment. You can discover numerous high-altitude lakes such as Ice Lake, Little Molas Lake, and Island Lake. The region also features powerful waterfalls like Clear Creek Waterfall, significant rivers such as the Animas River and the Rio Grande Headwaters, and prominent summits like Engineer Mountain.
What is the best time to visit the natural monuments in San Juan County?
The best time to visit the high alpine lakes, such as Ice Lake, is typically from July through August. However, in years with heavy snowfall, you might need winter gear even during the summer months due to the high elevation.
Are there family-friendly natural monuments in San Juan County?
Yes, Little Molas Lake is considered family-friendly. It features a picnic area along its banks, making it an ideal spot for a break and to enjoy the peaceful surroundings. Its proximity to parking also provides easy access.
What kind of hiking trails can I find near these natural monuments?
San Juan County offers a range of hiking trails. For easy options, consider routes like Bridal Veil Falls, Black Bear Pass Loop, or Cascade Creek Trail. More challenging trails include Ice Lakes Trail and Engineer Mountain via Pass Trail. You can find more details on these and other routes in the Easy hikes in San Juan County guide or the Running Trails in San Juan County guide.
Where can I find the best viewpoints in San Juan County?
Many natural monuments offer spectacular views. Ice Lake provides views of Golden Horn, Pilot Knob, and Ulysses S Grant Peak. Island Lake offers some of the best vistas in the Ice Lakes Basin. Additionally, the View on Grenadier Range and Red Mountain Pass are notable viewpoints.
What outdoor activities are available near the natural monuments?
Beyond hiking, San Juan County offers various outdoor activities. You can explore road cycling routes such as Telluride to Lizard Head Pass or Telluride to Dallas Divide, detailed in the Road Cycling Routes in San Juan County guide. The Animas River is also a popular spot for whitewater activities.
Are there any challenging natural monuments for experienced hikers?
Yes, several natural monuments present challenging terrain. The area around Ice Lake and Clear Creek Waterfall are known for challenging trails. Climbing Engineer Mountain also offers a demanding experience for those seeking a strenuous climb.
What should I know about the Animas River?
The Animas River is a 126-mile long tributary of the San Juan River, known for its roaring whitewater. In the San Juan Mountains, it flows alongside the Colorado Trail and the historic Durango-Silverton Steam train line, offering scenic views and opportunities for whitewater enthusiasts.
Can I find natural monuments that are good for a break or picnic?
Absolutely. Little Molas Lake is an excellent choice, featuring a dedicated picnic area. Ice Lake is also described as a stunning alpine lake perfect for a break amidst majestic peaks.
What makes Island Lake a must-see natural monument?
Island Lake is a cerulean-blue alpine lake nestled just north of Ice Lake, below Grant Peak. It is renowned for offering some of the most breathtaking views within the entire Ice Lakes Basin, making it a highly recommended spot for its scenic beauty.
What is the terrain like around the natural monuments in San Juan County?
The terrain in San Juan County is predominantly mountainous and alpine. You can expect high-altitude environments with significant elevation changes, rocky trails, and areas with forest cover, especially around features like Little Molas Lake and Clear Creek Waterfall.
Most popular routes in San Juan County
Most popular attractions in San Juan County
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