What's happening: On a June morning above the Scott Valley Swim and Tennis Club, Southern Marin Fire District (SMFD) Deputy Fire Marshal Marshall Nau stopped the group at a patch of dry grass and low vegetation and let everyone look at it.
The hillside had been cleared of French broom in late 2025 and eight months later, grasses and other plants had moved in to fill the space.
SMFD Deputy Fire Marshal Marshall Nau gestures toward a hillside near the Scott Valley Swim and Tennis Club that crews cleared of French broom. (MVB, June 26)
"That's what we did," Nau told the roughly two dozen residents, fire officials and elected representatives gathered for the field tour. "We came in and took everything out." He paused. "It just really paints a picture."
The broom itself was gone, pulled out by hand. Nau's point was more fundamental: once you clear a hillside, something always grows back. A fuel break that isn't maintained becomes a fuel load again.
The Marin Wildfire Prevention Authority (Marin Wildfire) and SMFD hosted the tour of the Greater Mill Valley Fuel Break, the project designed to encircle Mill Valley with a continuous treated perimeter and slow any wildfire before it reaches homes.
The Greater Mill Valley Fuel Break project area surrounding Mill Valley. The dark purple outline marks the 300-foot-wide fuel break analysis area. The lighter pink areas show the wider wildland-urban interface fuel reduction zone where additional vegetation management work may occur. (Marin Wildfire)
ℹ️ New to the newsletter? We covered the full picture in June - read that piece here: Mill Valley has spent years preparing for fire season. Here is where things stand.
Why it matters: The seed bank in the soil can hold thousands of seeds per square meter, according to Anne Crealock, Marin Wildfire's Planning and Program Manager, who led the walk alongside Nau. Pull the mature plants, flush the seeds, and the cycle starts again. Keeping any fast-growing vegetation from reclaiming cleared understory is the ongoing maintenance burden.
French broom is the primary target because it can reach 10 to 12 feet and produce flames 1.5 times its own height, according to SMFD prevention staff. Dense stands become ladder fuels, carrying a ground fire into the tree canopy. Ninety percent of what crews removed from the Scott Valley area was broom, Nau said.
The context: The Greater Mill Valley Fuel Break covers 673 acres and targets an 11-to-13-mile continuous treatment corridor around the city, out of a 23-mile total perimeter, according to the project's environmental review document. As of this summer, crews have added approximately 2.35 miles of new or freshly treated fuel break, on top of 2.2 miles of annually maintained areas within the project footprint, Nau told the Briefing. Work planned for 2026-2027 is expected to bring the running total to between 7.57 and 8.57 miles, putting the project close to 70% of the linear treatment needed to fully encircle the city.
The cost varies more than most residents probably realize, Crealock told the Briefing. Grazing can maintain some areas for $1,000 to $2,000 an acre. Hand crews working on foot with hand tools typically run $5,000 to $8,000 an acre, and can reach $20,000 or more on steep, inaccessible terrain or in environmentally sensitive areas where work slows to accommodate biologists, archaeologists and geologists checking the ground as crews go. The Scott Valley work, close to fire roads and accessible terrain, was toward the lower end of that range.
Greater Ross Valley Shaded Fuel Break, September 2024: dense stands of nonnative, invasive broom before treatment, cleared and with trees limbed up to reduce surface and ladder fuels after. (Marin Wildfire)
The money comes from Measure C, the parcel tax voters approved in March 2020 with 70.8% support. The tax now generates more than $22 million annually, according to Marin Wildfire's most recent annual report. Sixty percent goes to core programs, which include vegetation management. Twenty percent funds defensible space inspections and direct homeowner assistance. The remaining 20% goes to local wildfire prevention efforts by member agencies. The tax sunsets in August 2029. "We're going to have to go back to voters in a few years," Crealock said, "to continue this good work."
The debate: The fuel break operates within a quarter mile of active northern spotted owl territories. Spotted owls are federally and state-listed as threatened. Marin Wildfire's position is that removing broom helps the birds: owls need open understory to hunt, and a six-foot wall of broom eliminates that. A 2024 vulnerability assessment by Point Blue Conservation Science and National Park Service biologists ranked wildfire as one of the three top threats to Marin's owl population and fuels management in the lowest threat category. The authors acknowledge low confidence in that finding, noting an absence of empirical research specifically on Marin Wildfire-scale treatments in Marin.
The practical constraints are real. Under the project's environmental permit conditions, mechanical equipment cannot be used during northern spotted owl nesting season, which runs February 1 through July 31, according to the project's environmental review document. In January, Nau said crews tripled in size to do all-manual hand-pulling before that window closed, driving costs up sharply. Under the same document's woodland treatment prescription, native trees with a diameter of roughly 8 to 10 inches or more are retained. When crews encounter a tree of uncertain status, a spotted owl biologist makes the call on-site.
The independent Citizens Oversight Committee, which reviews Marin Wildfire spending on behalf of Measure C voters, has found the program on track. "Marin Wildfire and participating jurisdictions have been prudent in identifying, approving and financing projects aligned with the goals of Measure C," committee chair John McCauley wrote in the committee's most recent annual report.
What's next: Work this summer expands into Octopus Fire Road and along Blithedale Ridge, pushing toward a continuous perimeter. Maintenance of the Scott Valley section falls to the HOAs whose land the fuel break crosses.
Mark Jacobs, a retired physician and president of the Mill Valley Meadows HOA, whose neighborhood borders the treated area, was in the group that morning. Standing in front of a cleared hillside, he addressed the fire officials directly. "These days when different branches of government are at war with one another, people don't trust government," he said. "You guys are modeling what public servants do. I'm just so grateful that we have this."
Marin Water and One Team organized a field trip for residents along Bon Tempe Lake in the Mt. Tam Watershed in early June.
🔥 Two field trips, one mission: This June, we also walked the burn line above Bon Tempe Lake with Marin Water's Carl Sanders to see what prescribed fire does to the landscape on Mount Tamalpais, a different tool aimed at the same problem. Read that story here.
🌱 If you think Mill Valley deserves this kind of coverage, sharing it with one person today is the most direct way to help it grow.
This week in Mill Valley history: The fire that almost erased the town
On Tuesday afternoon, July 2, 1929, smoke appeared near the railroad tracks on Mount Tamalpais. By eight o'clock that evening, embers were blowing across the entire town. The postmaster in Sausalito, five miles away, picked charred wood out of his dooryard.
What saved downtown Mill Valley was the wind. Around eight that evening it shifted, blowing in from the bay and turning the fire back on itself. By that point, crews from San Francisco, Corte Madera, Larkspur, Ross, San Anselmo and San Rafael had lined the business streets with hose and were playing water across rooftops. Five hundred soldiers arrived from the Presidio. Between two and three thousand men fought through the night.
By Wednesday morning, a hundred chimneys stood on Summit Hill with nothing beneath them.
The burnt ruins of 20 Magee (now 409 Magee) with only the tall brick chimney standing after the fire in July 1929. (Courtesy of the Lucretia Little History Room, Mill Valley Library)
The losses were specific. The historic home of Miss Sylvia Bishop went first. The residences of W.H.R. Nostrand, L.F. Hamilton, B.P. Upham and Dr. A. Barkan followed. Mayor Adolph Eberhart estimated at least 100 homes destroyed and total losses between $500,000 and $1 million. Later accounts put the number at 117.
Inside the larger story were smaller ones. At the Hamilton house, a nearly helpless resident was carried out on an improvised stretcher. On the mountain, one relief engine on the railroad was trapped by the flames and abandoned. The railroad ran again briefly after the fire. It closed permanently in 1930.
Source: Mill Valley Record, July 5, 1929, via the California Digital Newspaper Collection (cdnc.ucr.edu). It went to press on July 5 with the fire not yet fully extinguished. Some details in that first account may not have survived later scrutiny. Later home count of 117 from Mill Valley Historical Society (mvhistory.org).
What we covered this week
🚵 Marin Municipal Water District confirmed a preferred watershed plan that would restore over 60 miles of unauthorized trails, protect 2,500 acres from future recreation development and open about 42 miles of roads and trails to bikes. We reported on what it means for trails near Mill Valley, what cyclists can do right now and the lawsuit and settlement that got the district here. A full environmental review is just getting underway.
🏫 Construction started on the largest phase of the Measure G middle school renovation, with site work now underway ahead of an interim campus opening in January 2027. We reported on what the $194 million bond has delivered at every school so far, what the middle school project has cost the district to date and what residents are paying for it on their tax bills.
🛣️ Marin's transportation authority changed how it splits road repair money among cities, cutting Mill Valley's annual local road funding. We reported on the number behind the cut, why one councilmember initially raised concerns and the tradeoff the city says makes it worth it.
If you want to read about any of these stories as they develop, the daily Briefing lands in your inbox Monday through Friday at 6am (Mon/Wed/Fri in July). A paid subscription makes this reader-funded, local news operation possible. It’s $12 per month, which you can cancel anytime, and the annual subscription comes out to less than $2 a week. Upgrading is only two clicks if you use Apple Pay.
Little League all-stars keep winning: five games, five wins for Mill Valley this week
What's happening: Mill Valley Little League had a five for five week in tournament play, with the 10s, 11s, 12s and 14s all winning games between July 1 and July 4 by a combined score of 53-10.
The 10s have been the busiest of the younger age groups. They opened knockout play as a #6 seed with a 15-1 win on July 1, then beat #3 Novato North 11-2 on Friday to take their second straight game. George E drove in three runs on two hits including a double, and Porter K added two RBI with a double of his own. Oliver P worked three innings on the mound before Ethan G and Ezekiel K closed it out, combining to hold Novato North to two runs on eight hits.
The 11s entered as #2 seed and beat San Rafael 9-2 on Friday, scoring in four of their six innings. Grey R struck out seven over 4.1 innings for the win, and Liam P closed it out with five strikeouts over the final 1.2 innings without allowing a hit. Quinn E had two hits and drove in a run, and Paul C added two RBI.
The 12s, entering as #1, beat West Marin 8-1 on Thursday, scoring eight unanswered runs after West Marin's lone run in the third. Jack D had three hits and two RBI, and Paxton K homered and drove in two. Lucas P earned the win in relief, striking out three over two scoreless innings, and Charlie M struck out four to start.
The 14s, who already won their District to reach sectionals, opened sectional play Saturday with a 10-4 win over Napa Juniors, scoring in five of seven innings including a five-run seventh to close it out. Nicholas D and Leo T each had two hits and a double, driving in two and three runs respectively. Six Mill Valley pitchers combined to strike out eight, with Jack C closing the door with four strikeouts over the final two innings.
What's next: All four Mill Valley teams are back in action today, July 5. The 10s play at 10:30am at Hammann Field in Novato, the 11s at noon at Joe Wagner Field in Larkspur, and the 12s at 4:30pm back at Hammann. The 14s face North/South Oakland at 1pm at Tam High; a win today would put them in the final.
⚾ Are you going to any of the Little League games this afternoon? Send us your thoughts or pictures of your kids in action and let us know if we have permission to use it.
📅 Next week in Mill Valley
Mon, Jul 6 – World Cup Watch Parties: USA vs. Belgium, Various Locations, 5pm. The USMNT squares off in the Round of 16 and local screens across town - including Sweetwater, Junction Beer Garden, Tam Tavern, and Playa - will be hosting watch parties. Check individual spots for match-day food and drink specials.
Tue, Jul 7 – First Tuesday ArtWalk, Various Downtown Venues, 5:30-7:30pm. Grab an ArtWalk guide and stroll through town to explore a vibrant range of work from local Bay Area artists. Rotating exhibitions include photography from the O'Hanlon Photo Groups, mixed media by Rachel Davis and Stela Mandel at The Depot (5:30–7pm reception), Timothy Horn oil paintings at the Chamber of Commerce, and Christin Coy landscapes at the Mill Valley Lumber Yard. The artwork remains on display throughout the month. Free to the public.
Tue, Jul 7 – Dead At The Junction hosted by Alex Jordan, The Junction Beer Garden, 6pm. Grab your friends, kick back with a cold drink, and enjoy an evening of live Grateful Dead-inspired jams at 226 Shoreline Hwy. This month's incredible lineup features Matt Hartle, John Yarn, Murph Murphy, and Danny Luehring, bringing the perfect soundtrack for a summer night. Free show; all ages welcome.
Tue, Jul 7 – Tuesday Night Comedy, Throckmorton Theatre, 8-10pm. Celebrating over 19 years of laughs at 142 Throckmorton Ave, this legendary showcase brings a theater-style stage and an intimate club atmosphere together for a lineup of 5 to 7 different comedians. Long known as a trusted testing ground for veteran touring headliners trying out new material before filming specials, it also shines a bright light on fresh talent on the rise. Doors open at 7:30pm.
Wed, Jul 8 – Jesse Ray Smith with Alex Jordan & Graham Norwood Duo, Sweetwater, 8pm. Catch an incredible night of soulful roots music and stellar songwriting at 19 Corte Madera Ave. Bay Area favorite Jesse Ray Smith brings his powerful blend of Americana and rock, sharing a stacked bill with the melodic harmonies of the Alex Jordan & Graham Norwood Duo. All ages; doors open at 7pm.
Thu, Jul 9 – Trivia Night, The Depot Cafe and Bookstore, 5:30pm. Part quiz show, part group therapy live on the plaza! Finally, a place where knowing too much about obscure topics makes you a hero. Picture trivia, wild categories, and bragging rights await.
Thu, Jul 9 – SunHunter with Beso Negro, Sweetwater, 8pm. A high-energy double feature takes over the historic stage at 19 Corte Madera Ave. SunHunter delivers their driving, soulful rock grooves alongside the dark, gypsy-rock stylings of Beso Negro for an unforgettable evening of live musicianship. All ages; doors open at 7pm.
Fri, Jul 10 – A Cabaret Showcase, Throckmorton Theatre, 4:30-5:30pm. Throckmorton Theatre’s Summer Theatre Camp presents a beautiful compilation of musical theatre pieces at 142 Throckmorton Ave. Following a two-week intensive, these talented campers have put together a spectacular showcase of their artistry in dance, acting, and music. It's a fun, talent-packed event for all ages. Doors open 15 minutes prior to showtime; entry is open-seating with donations encouraged to support the camp.
Fri, Jul 10 – Musical Feast, The Depot Cafe and Bookstore, 5:30pm. An alt-country-folk-rock ensemble blending Bonnie Raitt, John Prine, Springsteen, and Petty with guitars, flute, violin, and gorgeous harmonies live on the plaza. Free entry; all ages welcome.
Fri, Jul 10 – Creekside Fridays: Juke Joint, Tam Valley Community Center, 5:30–8:30pm. The classic outdoor music series at 203 Marin Ave. Catch a high-energy performance from local favorites Juke Joint on stage. Neighbors are encouraged to bike or walk but ample parking is available at the center. Attendees should check local takeaway options as no food or beverages will be served on-site this year. Free entry; all ages welcome.
Fri, Jul 10 – A Birthday Tribute to Ronnie James Dio, Sweetwater, 8pm. Honor the monumental legacy of one of heavy metal's greatest voices at 19 Corte Madera Ave. Local rock standouts unite for a thunderous, celebratory night of classic tracks spanning Dio’s iconic career with Rainbow, Black Sabbath, and his solo work. All ages; doors open at 7pm.
Sat, Jul 11 – July Maker's Market, Mill Valley Lumber Yard, 11am-5pm. Summer outdoor shopping returns to 129 Miller Ave. Come out for a sunny day of supporting over 15 local Bay Area artists and designers showcasing handmade jewelry, pottery, fragrances, apparel, and leather goods. Enjoy live music and a vibrant community atmosphere. Kid- and pet-friendly; free admission.
Sat, Jul 11 – Shoplifters United & Just Like Heaven, Sweetwater, 8pm. Transport yourself back to the golden era of 80s alternative UK rock at 19 Corte Madera Ave. This premier tribute double-header features Shoplifters United spinning the poetic catalog of The Smiths, alongside Just Like Heaven delivering the moody, infectious hooks of The Cure. All ages; doors open at 7pm.
Sun, Jul 12 – Aki Kumar with The Sampaguitas, Sweetwater, 8pm. Close out the weekend at 19 Corte Madera Ave with a brilliant masterclass in cultural fusion. Renowned dynamic blues-harp master Aki Kumar shares the stage with the beautiful melodies and rhythmic energy of The Sampaguitas, blending traditional sounds with deep-grooving American blues. All ages; doors open at 7pm.
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