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Routes
Hiking trails & Routes
United States
California
San Diego County

Beeler Canyon, Martha Grove, Cardiac Hill, Ridge and Western Loop

Routes
Hiking trails & Routes
United States
California
San Diego County

Beeler Canyon, Martha Grove, Cardiac Hill, Ridge and Western Loop

Hard

4.5

(9117)

13,661

hikers

Beeler Canyon, Martha Grove, Cardiac Hill, Ridge and Western Loop

07:41

27.1km

570m

Hiking

This difficult 16.9-mile hike through Sycamore Canyon/Goodan Ranch Preserve offers varied terrain, including Martha's Grove and Cardiac Hill

Last updated: February 26, 2026

Waypoints

A

Start point

Parking

Get Directions

1

13.1 km

Sycamore Canyon Trailhead

Highlight • Trail

This is the starting point for the Sycamore Canyon Preserve and Martha's Grove Trail. The Sycamore Canyon Preserve holds over 10 miles (16.09 kilometers) of trails through groves and grasslands.

Tip by

2

14.2 km

Martha's Grove

Highlight • Forest

This Grove of oak trees survived a big cedar fire in 2003. The Grove is dedicated as a memorial to Martha Harville, a park ranger who died at 31 years of age in 1988.

Tip by

3

14.2 km

Martha Harville Memorial Grove

Highlight • Forest

This Grove of oak trees survived a big cedar fire in 2003. The Grove is dedicated as a memorial to Martha Harville, a park ranger who died at 31 years of age in 1988.

Tip by

17.8 km

Goodan Ranch Sycamore Canyon County Preserve

Nature Reserve

5

21.7 km

Goodan Ranch County Preserve

Highlight • Natural

The Goodan Ranch County Preserve, that is also called Sycamore Canyon Preserve, has a total size of 2,272 acres. It is covered with a mix of grassland, riparian, coastal sage, …

Tip by

B

27.1 km

End point

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Way Types & Surfaces

Way Types

11.9 km

10.7 km

4.21 km

322 m

Surfaces

19.1 km

6.13 km

1.39 km

456 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 (360 m)

Lowest point (200 m)

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Weather

Powered by Foreca

Today

Wednesday 8 July

32°C

14°C

0 %

Additional weather tips

Max wind speed: 13.0 km/h

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Frequently Asked Questions

How long does it take to hike the Beeler Canyon, Martha Grove, Cardiac Hill, Ridge and Western Loop?

This challenging loop is approximately 27.1 kilometers (16.8 miles) long and typically takes around 7 hours and 40 minutes to complete for an average hiker. Keep in mind that this duration can vary based on your pace, breaks, and trail conditions.

What is the terrain like on this loop?

The terrain is quite varied. You'll encounter well-maintained and covered sections on the Beeler Canyon Trail, impressive valley views from the Ridge Trail, and more technical sections on the North Ridgeline Trail. Martha's Grove Trail offers a pleasant winding path through a grove. The route includes both singletrack and fire road sections, with some downhill switchbacks that can be loose and dry.

Where does the trail start and where can I park?

The loop can be accessed from the Sycamore Canyon Trailhead. Parking is available at the trailhead, which is located within the Goodan Ranch Sycamore Canyon Preserve.

Is this trail dog-friendly?

Yes, dogs are permitted on this trail. Please ensure your dog is kept on a leash and that you clean up after them to help maintain the preserve's natural beauty.

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

Given the potential for loose and dry sections, especially on downhill switchbacks, the cooler months from late fall to early spring are generally ideal. Summers in Poway can be very hot, making for a more strenuous hike. Always check the weather forecast before you go.

Are there any permits or entrance fees required for the Goodan Ranch Sycamore Canyon Preserve?

Generally, there are no entrance fees or permits required for day use of the Goodan Ranch Sycamore Canyon Preserve. However, it's always a good idea to check the official San Diego County Parks website for any updated regulations or specific event requirements before your visit.

What notable features or landmarks will I see along the route?

Highlights include the peaceful Martha's Grove (also known as Martha Harville Memorial Grove), which features a 'techy section' and a historic windmill near its end. You'll also experience the challenging Cardiac Hill and enjoy expansive views from the Ridge Trail. The entire loop is situated within the scenic Goodan Ranch County Preserve.

How difficult is this hike?

This loop is rated as difficult overall due to its length and significant elevation changes (over 565 meters up). While some sections like the Western Trail are considered easy, Martha's Grove Trail is rated difficult for hiking, and Cardiac Hill is intermediate. The North Ridgeline Trail is also noted for being quite technical.

Does the trail intersect other well-known paths?

Yes, the route incorporates sections of several official trails within the preserve. You will hike along parts of the Martha Grove Trail, Ridge Trail, Beeler Canyon Trail, Cardiac Hill, and Beeler Connector Trail.

What should I bring for this hike?

Given the length and difficulty, it's essential to bring plenty of water, especially on warmer days, as there are no water sources on the trail. Sturdy hiking shoes with good grip are recommended for the varied and sometimes loose terrain. Sun protection (hat, sunscreen) is also advisable, along with snacks and a map or GPS device.

Are there any amenities or facilities near the trailhead?

The trailhead is located within the Goodan Ranch Sycamore Canyon Preserve, which offers basic facilities like restrooms. For cafes, restaurants, or other amenities, you would need to drive a short distance to nearby Poway.

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