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Routes
Mountain biking trails
United States
California
San Luis Obispo County

Grey Pine and Rocky Trail Loop

Moderate

2.6

(1)

43

riders

Grey Pine and Rocky Trail Loop

02:02

16.3km

400m

Mountain biking

Mountain bike the Grey Pine and Rocky Trail Loop, a moderate 10.1-mile route with lake views and varied terrain in Santa Margarita Lake Regi

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

1.85 km

Grey Pine Trail

Highlight (Segment) • Trail

The Grey Pine Trail ends at Eagle View, 326 feet above Santa Margarita Lake. You are rewarded with panoramic views all around. The trail runs through a pretty oak forest …

Tip by

2

5.39 km

Santa Margarita Lake

Highlight • Lake

The Grey Pine Trail ends here at the water's edge. Santa Margarita Lake, also known as Salinas Reservoir, was dammed in 1941 by the Army Corp to provide water for the camp at San Luis Obispo.

Tip by

3

13.5 km

Rocky Trail

Highlight (Segment) • Trail

The singletrack trail takes you up a hill above the lake as you climb away from the main trailhead. The descent is a blue route, and slingshots you downhill back to the water's edge.

Tip by

B

16.3 km

End point

Parking

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Way Types & Surfaces

Way Types

12.5 km

3.22 km

537 m

Surfaces

12.5 km

3.37 km

235 m

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (490 m)

Lowest point (400 m)

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Weather

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Today

Sunday 10 May

28°C

7°C

0 %

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Max wind speed: 10.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where is the trailhead for the Grey Pine and Rocky Trail Loop and what are the parking options?

The Grey Pine and Rocky Trail Loop is located near Santa Margarita Lake. Specific trailhead access points and parking details for the Santa Margarita Lake Regional Park can vary, so it's best to check the park's official website or local signage upon arrival for the most current information.

Is the Grey Pine and Rocky Trail Loop suitable for beginner mountain bikers?

The loop is rated as moderate. While the Grey Pine Trail section features a flowy, gradual climb, it does transition into steeper parts. The Rocky Trail sections can be quite rocky and technical. Beginners with some experience might find it challenging but manageable, possibly needing to walk shorter rocky sections.

What kind of terrain can I expect on this mountain bike loop?

You can expect a varied terrain. The route winds through oak-studded forests, offering shade, and features magnificent sandstone rock outcroppings. There are flowy sections, gradual climbs, and steeper ascents. The 'Rocky' parts of the trail will likely include loose gravel, embedded rocks, and potentially some technical rock gardens, especially on descents.

What are the main points of interest or scenic views along the route?

A major highlight is the Grey Pine Trail, which offers great views of Santa Margarita Lake. The trail culminates at Eagle View, a rocky point 326 feet above the water, providing expansive vistas. The route also passes through sections of the Rocky Trail.

How long does it typically take to complete the Grey Pine and Rocky Trail Loop?

Based on an average mountain biking pace, this 16.3 km (10.1 mi) loop typically takes around 2 hours to complete. However, your actual time may vary depending on your fitness level, the number of stops you make, and the technicality of the rocky sections.

What is the best time of year to ride this loop?

Late April is noted for lush, green landscapes. However, the trail can become very dry and dusty, especially in warmer months. Spring and fall generally offer the most pleasant conditions with milder temperatures and potentially less dust. Always check current trail conditions before heading out.

Are there any permits or entrance fees required for the Santa Margarita Lake Regional Park?

Yes, as the trail is located within the Santa Margarita Lake Regional Park, there may be entrance fees or permits required for park access. It's advisable to check the official Santa Margarita Lake Regional Park website for the most up-to-date information on fees, operating hours, and any specific regulations.

Is the Grey Pine and Rocky Trail Loop dog-friendly?

Many multi-use trails in regional parks are dog-friendly, often requiring dogs to be on a leash. However, specific regulations can vary within Santa Margarita Lake Regional Park. Please confirm the current dog policies directly with the park authorities before bringing your furry friend.

Does the trail intersect other well-known paths?

Yes, the route incorporates significant sections of the official Grey Pine Trail and the Rocky Trail, which are prominent trails within the area.

What should I bring for a mountain bike ride on this loop?

Given the moderate difficulty and varied terrain, you should bring plenty of water, especially on dry days, as there may not be water sources on the trail. Essential gear includes a helmet, appropriate mountain biking attire, a repair kit for your bike, and snacks. Sun protection is also recommended due to open sections.

Are there any specific hazards to be aware of on the trail?

The trail can be very dry and dusty, which can affect traction. Some reports mention the presence of poison oak, so it's wise to be aware of your surroundings, especially if you're sensitive to it. The rocky sections require good bike handling skills, and steep descents should be approached with caution.

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