Dec 6, 1969 · Altamont Speedway · Tracy, CA
What did Altamont actually cost?
Altamont Speedway Free Festival
Historical recreation — figures are period estimates for demonstration. Names, venues, dates, and headline figures are documented history; line-item amounts are period-plausible reconstructions, never presented as historical fact.
The history
Dec 6, 1969 — a free concert headlined by the Rolling Stones, with Santana, Jefferson Airplane, the Flying Burrito Brothers and CSNY, moved to Altamont Speedway on roughly 48 hours' notice after Golden Gate Park and Sears Point fell through. Around 300,000 attended; ticket revenue was $0 by design. Security planning relied on the Hells Angels (reported compensation: ~$500 in beer), and the day ended with four deaths, including the killing of Meredith Hunter — it remains the defining case study in event security planning.
Estimated attendance: 250,000–300,000.
The budget vs. the close
Top-line plan $60,000.00 · recorded actuals $72,000.00 — variance derived from the line items below, the way Wavemist computes it on every show.
The paper trail, line by line
| Category | Line item | Budgeted | Actual | Variance |
|---|---|---|---|---|
| Venue | Speedway site use — offered free by owner Dick Carter for the publicity Documented: no site fee changed hands. | $0.00 | $0.00 | $0.00 (—) |
| Talent | Performer fees — all acts played without fees at a free concert Documented: a free show; no performance fees. | $0.00 | $0.00 | $0.00 (—) |
| Labor | Overnight stage & scaffold relocation from Sears Point The entire production moved in about a day and a half. | $15,000.00 | $28,000.00 | +$13,000.00 (+86.7%) |
| Gear | PA & lighting package Period estimate (reconstruction). | $12,000.00 | $18,000.00 | +$6,000.00 (+50.0%) |
| Security | Security — Hells Angels engaged informally (~$500 in beer, as reported) The reported arrangement; studied ever since as what not to do. | $500.00 | $500.00 | $0.00 (0.0%) |
| Other | Medical tents & volunteer doctors Period estimate (reconstruction). | $3,000.00 | $9,000.00 | +$6,000.00 (+200.0%) |
| Other | Sanitation — far short of the crowd that arrived Period estimate (reconstruction). | $4,000.00 | $6,000.00 | +$2,000.00 (+50.0%) |
| Travel | Helicopter access for performers The site had effectively one road in; performers flew. | $2,000.00 | $4,000.00 | +$2,000.00 (+100.0%) |
| Permits | County arrangements & legal Period estimate (reconstruction). | $1,000.00 | $1,500.00 | +$500.00 (+50.0%) |
| Insurance | Liability coverage (reconstruction; coverage at the time unclear) Period estimate (reconstruction). | $5,000.00 | $5,000.00 | $0.00 (0.0%) |
| Total | $42,500.00 | $72,000.00 | +$29,500.00 | |
Historical recreation — figures are period estimates for demonstration. Variance is computed on read from the line items — never stored.
Carbon footprint: 1969 vs. today
Directional, order-of-magnitude estimates for demonstration — methodology shown line by line, not a measured footprint. Factors are published per-unit values (US EPA 2024 Hub diesel at 10.21 kg CO₂e/US gal ≈ 2.68 kg/litre DEFRA-equivalent; eGRID grid kWh; DEFRA air travel) — where the in-product carbon registry already seeds a factor, the exact same value is used here.
The 1969 production, as modeled
| Source | Assumption | kg CO₂e |
|---|---|---|
| Diesel generator power | 2 × 150 kW diesel gensets, ~40 h build + show at ~6 gal/hr → 480 gal Factor: US EPA 2024 Hub, 10.21 kg CO2e/US gal diesel (seeded in the product carbon registry as generator.diesel-ulsd-per-gallon) | 4.9 t CO₂e |
| Rush trucking (overnight move from Sears Point) | Stage, scaffold and PA relocated in ~36 h → ~4,000 truck-miles Factor: US EPA 2024 Hub, 0.9 kg CO2e/truck-mile (seeded in the product carbon registry as trucking.tractor-trailer-53ft-diesel) | 3.6 t CO₂e |
| Helicopter access for performers | ≈20 flight-hours at ~60 gal Jet-A/hr → 1,200 gal (one road in) Factor: US EPA 2024 Hub, 9.75 kg CO2e/gal Jet A | 11.7 t CO₂e |
| Attendee travel (the dominant source) | ≈300,000 attendees, ~120 miles round trip, ~4 per car → 9,000,000 car-miles Factor: US EPA, 0.37 kg CO2e/car-mile (seeded in the product carbon registry as travel_ground.sedan-gas) | 3,330 t CO₂e |
| Waste to landfill | ≈300,000 people × ~1.5 kg landfilled each → ~450 t Factor: DEFRA 2024, ~446 kg CO2e/tonne mixed waste to landfill (0.446 kg/kg) | 200.7 t CO₂e |
| Period estimate, total | 3,550.9 t CO₂e | |
The same show with today's tech
Battery/hybrid power + HVO in remaining gensets on: Diesel generator power
−75% · saves 3.7 t CO₂e
LED cuts lighting energy ~80–90% vs tungsten/PAR; HVO renewable diesel runs ~75% below ULSD per gallon (2.55 vs 10.21 kg, CARB LCFS best case).
Consolidated, routed trucking on: Rush trucking (overnight move from Sears Point)
−20% · saves 720 kg CO₂e
Load consolidation + routing software typically trims 15–25% of freight miles.
Ground transport plan for artists on: Helicopter access for performers
−60% · saves 7 t CO₂e
A real site/traffic plan (the thing Altamont never had) replaces most helicopter hours.
Shuttle program + carpool incentives on: Attendee travel (the dominant source)
−30% · saves 999 t CO₂e
Assume one-third of car-miles shift — with one road in, buses also fix the safety problem.
Waste diversion (recycle/compost) on: Waste to landfill
−50% · saves 100.4 t CO₂e
Modern recycling/compost programs routinely divert half the waste stream from landfill.
The headline
≈31% lower with a modern, Wavemist-tracked production
3,550.9 t CO₂e then → ≈2,440.1 t CO₂e with today's tech. The honest residual is the part no rig can fix — people getting to the show.
In Wavemist, this isn't a separate spreadsheet: carbon is computed from the same line items you already budget — the trucking line that prices the bid is the trucking line that counts the miles.
Directional, order-of-magnitude estimates for demonstration — methodology shown line by line, not a measured footprint.
With Wavemist — the retro analysis
a $0-revenue free show with an unpriced security line is exactly what the platform flags — the savings engine surfaces uncosted labor, vendor scorecards force a real security bid instead of a handshake, and the 48-hour venue change becomes a tracked change order with its risks in writing.
Run your own paper trail
Import all 9 legendary shows into your own Wavemist — free — no card required — or see pricing for the Producer and Studio plans.