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Sugarloaf Mountain Trail, Napa

Wine country also makes excellent hiking country, as illustrated by this great Napa hillside route.
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Rating: 5 out of 5 by EveryTrail members
Difficulty: Moderate
Length: 7.4 miles
Duration: Half day

Overview :  Winemakers know that Napa Valley is a great place to be all year round, hence it's possible to find great hiking conditions here on... more »

Tips:  • We'd recommend avoiding hiking this park on the hottest days, because the weather can be brutal and shade along the is limited.
... more »

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Points of Interest

1. Trailhead

The trailhead is accessible from inside the Skyline Wilderness RV park at the end of Imola Avenue.

A day-use fee is charged per vehicle as you enter, at which time you should pick up a copy of the park map. Adequate parking is always available.

Head towards the trees at the south end of the parking lot and pick up the track leading to the... More

2. Lake Marie Road

Turn right onto the narrow trail leading away from Lake Marie Road, and you'll soon be climbing toward the hilltops.

3. Skyline Trail

Our guide traces Skyline Trail as it skirts the southern boundary of the park, over hillcrests and ridgelines, providing peek-a-boo views of the surrounding countryside.

Skyline Trail is listed as part of the ambitious Bay Area Ridge Trail project, which is working to create a 550 mile long mountain trail route around the entire San Francisco Bay... More

4. Lake Marie

The stone chimney is all that remains of the house by the side of Lake Marie, which you'll pass before reaching the lake itself.

The lake offers some welcome shade and is a picturesque spot from which rest and enjoy a spot of lunch.

5. Chaparral Trail

Continue on the Skyline Trail, heading away from Lake Marie.

6. Thatcher's Rim Rock Trail

After taking a left at the junction onto Thatcher's Rim Rock Trail, you'll be greeted with the steep southern slopes of Sugarloaf mountain which rise 650ft above you.

The first 400ft is particularly challenging and requires some careful, steady negotiation, but the route shouldn't be be too difficult to conquer - especially if you're equipped... More

7. Sugarloaf Mountain Summit (1630ft)

You've finally made it to the summit of Sugarloaf! Pat yourself on the back, reward yourself with the great views, and then revel in the knowledge that the hike is all downhill from here.

8. Fig Tree

After descending the Rim Rock Trail and cross directly over the Lake Marie trail you'll arrive at the Lake Marie Crossroads marked by the location of a lone fig tree.

Turn right onto the road, and follow its route downhill until you close your loop trail and can return back to the trailhead.