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United States
Colorado
Boulder County

St. Vrain Greenway and Sandstone Ranch Loop

Routes
Hiking trails & Routes
United States
Colorado
Boulder County

St. Vrain Greenway and Sandstone Ranch Loop

Moderate

4.6

(1097)

10,843

hikers

St. Vrain Greenway and Sandstone Ranch Loop

02:04

7.97km

40m

Hiking

Explore the St. Vrain Greenway and Sandstone Ranch Loop, a moderate hiking route spanning 5.0 miles (8.0 km) with a gentle elevation gain of 141 feet (43 metres). This trail offers a pleasant journey through diverse scenery, largely following the St. Vrain Creek and winding through various city parks. You…

Last updated: April 23, 2026

Waypoints

A

Start point

Parking

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1

169 m

St. Vrain River Trail

Highlight (Segment) • Trail

The St. Vrain River Trail is the "crown jewel" of Longmont's trail system as it links many parks, schools, other trails, and commercial areas via an attractive, well-maintained concrete path. …

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2

5.06 km

Sandstone Ranch Community Park

Highlight • Rest Area

The Sandstone Ranch Park in Longmont, Colorado, is a vast recreational and natural area that offers a variety of amenities and activities. It spans over 313 acres, featuring athletic fields, …

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B

7.97 km

End point

Parking

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Way Types & Surfaces

Way Types

6.85 km

970 m

154 m

Surfaces

5.18 km

1.52 km

970 m

310 m

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Elevation

Elevation
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Weather

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Monday 19 October

20°C

4°C

0 %

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Max wind speed: 4.0 km/h

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Frequently Asked Questions

What is the overall difficulty of the St. Vrain Greenway and Sandstone Ranch Loop?

This route is generally considered moderate. While sections of the St. Vrain River Trail are mostly flat and easy, the combined length and varied terrain, including gravel paths and some natural trails within the Sandstone Ranch Community Park, contribute to its moderate rating. It's suitable for most hikers with a reasonable fitness level.

What kind of terrain can I expect on this loop?

The terrain is quite varied. You'll find a mix of concrete bike paths, gravel walking paths, and some natural dirt trails, especially within the Sandstone Ranch Nature Area. While generally flat, some sections might have slight inclines or sandstone bluffs. Paths are typically well-maintained.

Are dogs allowed on the St. Vrain Greenway and Sandstone Ranch Loop?

Yes, dogs are generally welcome on this route. However, it's important to note that some sections of the St. Vrain Greenway, particularly east of County Line Road, may have restrictions to protect local wildlife. Always keep your dog on a leash and be prepared to clean up after them.

Where can I park to access the St. Vrain Greenway and Sandstone Ranch Loop?

There are several parking options available. You can typically find parking at various access points along the St. Vrain Greenway, including near city parks like Golden Ponds, Roger's Grove, or Izaak Walton Pond. The Sandstone Ranch Community Park also offers parking facilities, which can serve as a convenient starting point for the loop.

What is the best time of year to hike this trail?

The St. Vrain Greenway and Sandstone Ranch Loop can be enjoyed year-round. Spring and fall offer pleasant temperatures and beautiful scenery, especially in autumn when the cottonwood trees display vibrant colors. Summer can be warm, so an early start is recommended. Winter hiking is also possible, but be prepared for potentially icy or snowy conditions on some sections.

Are there any permits or entrance fees required for this route?

No, there are no specific permits or entrance fees required to access the St. Vrain Greenway or the trails within the Sandstone Ranch Community Park. Both are publicly accessible.

What kind of scenery and viewpoints can I expect along the way?

You'll experience diverse scenery, from following the St. Vrain Creek through various city parks to open views of the Front Range mountains, including Longs Peak. Within Sandstone Ranch Community Park, you'll see ponds, rock formations, and groves of cottonwood trees. A short spur trail at Sandstone Ranch leads to an overlook with magnificent vistas.

What wildlife might I see on the St. Vrain Greenway and Sandstone Ranch Loop?

The area is rich in wildlife, especially near the water features. You might spot bald eagles, wood ducks, great blue herons, and Canada geese, particularly around Golden Ponds Park. Keep an eye out for various bird species and other small animals throughout the route.

Does this route connect with other trails?

Yes, the route extensively uses sections of the Longmont Loop - South and the Saint Vrain Greenway. It's part of the larger Front Range Trail plan, which aims to connect a regional trail system.

Are there any historical features or facilities at Sandstone Ranch Community Park?

Yes, the Sandstone Ranch Community Park offers more than just trails. You can explore an early 1880s homestead, a visitor's center, an old barn, and a cemetery. It's also a popular spot for picnicking, with playgrounds and ball fields available.

Are there any cafes or restaurants nearby for after the hike?

Yes, as the St. Vrain Greenway passes through Longmont, you'll find various cafes, restaurants, and breweries within a short drive of different access points. Longmont offers a good selection of dining options to refuel after your hike.

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