National park · United States
Armstrong Redwoods State Natural Reserve
Visit Armstrong Redwoods: pay the $10 vehicle fee (or $5 per person), walk the easy paved loop (30 min) or the moderate 2 km (1.2 mi) Redwood Trail, and go in spring or fall to avoid crowds.Visit Armstrong Redwoods: pay the $10 vehicle fee (or $5 per person), walk the easy paved loop (30 min) or the moderate 1.2 mi (2 km) Redwood Trail, and go in spring or fall to avoid crowds.
- Source checked
- A source and a date are on record: we read it from an official or published page. Not yet confirmed on the ground.
- Field checked
- Someone checked it on the ground, with the date shown.
- Plan calculated
- Worked out by Voykit from its own data (times, distances, budgets). A calculation, not a measurement.
Unknown times stay unknown. How we verify
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Map to the park
Add your hotel to get directions from it. · stays in this browser; shared with the pocket card.
Area
2 km² (1 sq mi)1 sq mi (2 km²)
approximate
Established
1930
Best months
Mar–May, Sep–Oct
UNESCO
None
Rules in force · 9Crossing between the US, Canada and Mexico by land needs …Cannabis is legal in Canada and in many US states, but ta…
- North America ↗Crossing between the US, Canada and Mexico by land needs your passport even on a day trip; rental cars need the company's written permission to cross, and most US and Canadian rental insurance stops at the Mexican border.
- North America ↗Cannabis is legal in Canada and in many US states, but taking any amount across the US, Canadian or Mexican border is a federal crime — including edibles and vapes.
- North America ↗The busiest US and Canadian national parks need timed-entry, campsite or lodge reservations in summer; release dates are months ahead.
- United States ↗Check whether you need an ESTA (Visa Waiver Program) or a visa on the official CBP and State Department sites; apply only through esta.cbp.dhs.gov, not third-party sites, and allow time before you book.
- United States ↗Several popular national parks use timed-entry or vehicle reservations in peak season; check each park's page on nps.gov and book on recreation.gov before fixing your dates.
- United States ↗Medical care is very expensive for visitors; buy travel insurance with high medical cover before you fly.
- United States ↗Tipping is expected: about 15–20% at sit-down restaurants and bars, and a tip for taxis, hotel staff and guides.
- Sonoma County ↗A car is the practical default; SMART rail covers only the Windsor–Petaluma corridor.
- Sonoma County ↗Most tasting rooms charge a fee, often waived with a bottle purchase; check each winery.
At a glance
- Country
- United States
- Area
- 2 km² (1 sq mi)1 sq mi (2 km²)
- The reserve covers about 2 km² of old‑growth and younger coast redwoods (check).
- Established
- 1930
- Best months
- Mar–May, Sep–Oct
- Permits
- For some areas
Armstrong Redwoods State Natural Reserve protects a stand of ancient coast redwoods, including the 1,400‑year‑old Armstrong tree, alongside younger growth and fern‑rich understory. The park offers short paved loops for families and moderate trails for deeper forest experiences, all within a compact area near Petaluma, California.
Decide
Why go, which months, and what lives here when
At a glance
Status
- No UNESCO listing; national park since 1930.
Size and age
2 km² (1 sq mi)1 sq mi (2 km²) · national park since 1930
The reserve covers about 2 km² of old‑growth and younger coast redwoods (check).
Why go
- Walk among old‑growth coast redwoods, including the 1,400‑year‑old Armstrong tree.
- Easy paved loop suitable for families and strollers.
- Several moderate trails let you explore younger redwoods and fern‑rich understory.
When to go
- JanGo
- FebGo
- MarBest
- AprBest
- MayBest
- JunCaution
- JulCaution
- AugCaution
- SepBest
- OctBest
- NovGo
- DecGo
- JanCool, fewer visitors.
- FebMild, low crowds.
- MarSpring bloom, comfortable temps.
- AprWarm, dry, peak foliage.
- MayDry, pleasant hiking.
- JunWarmer, occasional fog.
- JulWarm, higher visitor numbers.
- AugWarm, possible crowds.
- SepEarly fall, cooler.
- OctFall colors, low crowds.
- NovCool, quiet.
- DecCool, fewer visitors.
Wildlife and nature calendar
| What | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coast redwoodsAll year | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| Fern understory and redwood sorrelMar–Sep | no | no | yes | yes | yes | yes | yes | yes | yes | no | no | no |
Arrive & move
Getting in, how the park is divided, and where things are
Show 3 sectionsHideHow to get there, Zones and sectors, Sketch map
How to get there
From Santa Rosa
Drive north on US‑101, exit at Petaluma, then follow signs to the reserve (≈30 km (19 mi)).Drive north on US‑101, exit at Petaluma, then follow signs to the reserve (≈19 mi (30 km)).
45 min
Open the page →
From San Francisco
Take US‑101 north, exit at Petaluma, then local roads to the reserve.
1 h 15 min
Open the page →
From San Jose
Drive north on US‑101, exit at Petaluma, then follow signs.
1 h 30 min
Open the page →
Zones and sectors
| Zone | What is there | Access |
|---|---|---|
| Main parking area | Visitor center, restrooms, and trailhead for the paved loop and Redwood Trail. | Open daily, fee payable at gate. |
| Armstrong Tree Grove | Location of the 1,400‑year‑old Armstrong redwood. | Open via short side trail, no extra fee. |
| Backcountry trailheads | Access points for longer hikes beyond the reserve (outside jurisdiction). | Limited, no permits required within reserve. |
Sketch map
Take the points offline
3 points as a GPX waypoint file, plus a plain-text list of coordinates. Save it while you have signal: maps apps show the points without a connection.
Coordinates from California State Parks official site; approximate for trail features.
See & do
Caves, trails and wildlife, with how hard each is and whether it needs booking
Show Top experiencesHide
Top experiences
Practical
Fees, permits, rules, where to sleep and what can go wrong
Show 8 sectionsHideEntry fees and permits, Park rules, Where to stay, Safety, Accessibility, Visiting lightly, Questions people ask, Related
Entry fees and permits
| Item | Range | Per | Note |
|---|---|---|---|
| Vehicle entry fee | US$10 | vehicle | Standard California State Park fee (2026 estimate). |
| Pedestrian entry fee | US$5 | person | If arriving on foot or bike. |
Ranges, not quotes: fees change without notice. Check with the park or your operator · checked Sep 2026.
Park entry permit or guide
What would our group pay?
People
Nights or days
- US$10
- US$5
Tick the fees that apply to your trip to see a total.
A guide, not a quote: the ranges are estimates (checked 2026-09) and each fee may have rules on who pays it. Confirm on California State Parks – Armstrong Redwoods before you go.
Park rules
- Pets
- Leashed dogs allowed only on paved loop; not permitted on backcountry trails.
- Camping
- Not allowed within the reserve; use nearby campgrounds.
- Fire
- Open fires prohibited; use provided grills at picnic areas.
Where to stay
Near the park
Petaluma hotels
Range of inns and B&Bs 10 km (6.2 mi) north of the reserve.Range of inns and B&Bs 6.2 mi (10 km) north of the reserve.
Near the park
Sonoma County campgrounds
Several state and private campgrounds within 20 km (12 mi).Several state and private campgrounds within 12 mi (20 km).
Safety
Slip on wet roots low
Heat in summer medium
How much daylight do you have?
Time out
Finding the local time zone…
Times are local to the spot (zone loading). The half-hour margin is our rule of thumb, not an official figure; light fades earlier in forest or under cloud. Carry a headlamp on any route that could run late.
Accessibility
- Paved loop is wheelchair‑accessible.
- Restrooms and parking are level ground.
Visiting lightly
- Stay on marked trails to protect root systems.
- Pack out all litter.
Questions people ask
How much does it cost to enter Armstrong Redwoods State Natural Reserve?
Vehicle entry is $10 per car; pedestrians pay $5 per person (2026 estimate).
What are the best hikes in Armstrong Redwoods State Natural Reserve?
The 0.6 km paved Redwood Loop (easy) and the 2 km Redwood Trail (moderate) are the most popular.
When is the best time to visit Armstrong Redwoods State Natural Reserve?
Spring (Mar‑May) and fall (Sep‑Oct) offer mild weather and fewer crowds.
Are dogs allowed on the trails?
Leashed dogs are allowed on the paved loop only; they are not permitted on backcountry trails.
Can I camp inside the reserve?
Camping is not allowed; use nearby Sonoma County campgrounds.
Deep dive
Every source; fees and rules change, so check before you go
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Ask about Armstrong Redwoods State Natural Reserve
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