Lieu-dit · Chagny
La Montagne de la Folie
La Montagne de la Folie is a lieu-dit in Chagny, Côte Chalonnaise, Burgundy, whose largest tier is village. It lies within the official cru Clos du Chaigne.
10.4 ha
delimited
253 m
elevation
10.9 h
sun at harvest
Open on the mapWith the boundary, the plots, the sun through the year and the bedrock.
In figures
| Level | Village 69% Premier Cru 31%inao-aoc-viticoles-bulk (c. 4 September 2026) |
|---|---|
| Official cru | Clos du Chaigne |
| Village | Chagny |
| Region | Côte Chalonnaise, Burgundy |
| Delimited | 10.4 hainao-aoc-viticoles-bulk (c. 4 September 2026) · cadastre-etalab (4 September 2026) |
| Planted | 6.87 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (5 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 15 |
| Grape variety | chardonnay / pinot noir also permitted: pinot grisinao-cahiers-des-charges (7 September 2026) · dgddi-superficies-produits (7 September 2026) · franceagrimer-observatoire-viticulture (7 September 2026) |
| Organic | 0%agence-bio-cartobio (c. 5 September 2026) · agence-bio-operateurs (5 September 2026) |
Place in the village
Among the 4 named plots ranked village in Chagny, from high to low:
Position
253 m
elevation
12.0%
steep
E
east
mid-slope
even slope
| Elevation | 253 m 233 to 270 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | −0.09 °C by day, relative to the village centre at 247 m, ± 0.03 °Cmeteo-france-quotidiennes (6 September 2026) · meteo-france-postes (6 September 2026) · meteo-france-lsh (6 September 2026) · ign-rge-alti (5 September 2026) |
| Slope | 12.0% 6.8°ign-rge-alti (5 September 2026) |
| Aspect | east 85°ign-rge-alti (5 September 2026) |
| On the slope | 30% mid slope, on an even plane, 382 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 31%Stratified frost scree and colluvium 0.115–0.012 million years (laatste ijstijd)
- 70%Nantoux limestone and Mercurey marl 157–155 million years
Not a borehole: ordered by age, thickness by share of surface.
In the glass. Where a marl layer lies within reach of the roots, the water supply in a dry summer is more generous than on the purely hard limestones. Wines from such plots are often described as fuller, but that works through the water reserve and not through the stone.
Fine, lithographic limestone that passes upwards into oolitic beds, with beneath it the grey marls of Mercurey, a formation in its own right that the map places under the same code. Deposited on a shallow, warm platform sea in which calm lagoons and agitated sandbanks alternated. Where the marl emerges at the foot of the limestone beds, a break in slope forms. Upper Oxfordian, about 157 to 155 million years old.
For the vine. What counts here is the stacking: marl at the bottom that retains water, limestone above that drains and supplies stone at the surface. Where a marl layer lies beneath a stony cover, the vine has a water reserve in August and surplus water can still get away in spring. Pure marl is cold and slow in spring and heavy to work, and the lime content varies greatly over short distances, so the chlorosis risk does too.
Named after Nantoux in the Hautes-Côtes de Beaune and after Mercurey; the combination is characteristic of the Côte chalonnaise and of the higher slopes and flatter steps of the Côte de Beaune.
BRGM geological map at 1:50,000. It tells vineyards apart, not plots within a vineyard. The link between rock and taste is indirect: soil depth, water and warmth do the work, and slope, vine age and the cellar do the rest. Units on that map: j5c, GP.
brgm-bdcharm50 (4 September 2026)Sun and horizon
07:33
above the hill
18:25
behind the hill
10.9 h
sun at harvest
0.7 h
lost to the hill
Grey: sun up, but behind the hill or the vineyard's own slope.
Around harvest the sun rises here at 07:33 above the hill and disappears at 18:25 behind the hill: 10.9 hours of direct sun on a clear day. The ridge reaches 13.4° above the horizon to the west.
| Irradiation | −1.1% versus flat land 1,038 kWh/m² from April to October, 43% of it diffuseunder the average cloudiness of 2005 to 2023 (PVGIS-SARAH3, EU JRC); direct, diffuse and reflected light togetherign-rge-alti (5 September 2026) · ign-lidarhd-mnh (6 September 2026) · ign-bdforet-v2 (5 September 2026) · jrc-pvgis-sarah3 (10 September 2026) |
|---|---|
| Open sky | 99.2% of the sky the slope itself sees; the surrounding relief blocks the restign-rge-alti (5 September 2026) · ign-lidarhd-mnh (6 September 2026) · ign-bdforet-v2 (5 September 2026) |
Three reference days and the caveat
| rise | set | sun | day | |
|---|---|---|---|---|
| 21 June | 05:56 | 20:16 | 14.3 h | 15.9 h |
| 20 September | 07:33 | 18:25 | 10.9 h | 12.3 h |
| 21 December | 08:38 | 15:25 | 6.8 h | 8.5 h |
Computed from the IGN elevation model at 5 m: horizon in 36 directions up to six kilometres, sun position per minute, angle of incidence on the mean slope. Clear sky, with the tree canopy from the IGN forest inventory as a raised horizon (15 m closed forest, 5 m heath, trees within 60 m ignored), 34% of the far field is forest (BD Forêt), no buildings.
Air and cold
28 m
above the lowest point
drains far away
cold air
a combe
10.4 ha flows past
| Cold air | 28 m high on the slope, cold air drains far awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 10.4 ha a combe, mean over the polygon 0.42 haign-rge-alti (5 September 2026) |
Planting
E-W
down the slope
1.03 m
between the rows
100%
vineyard in 1950
| Rows | E-W (91°) down the slope (6°), every 1.03 m, all rows parallelmeasured over 6.8 of 6.9 ha plantedign-bdortho (5 September 2026) |
|---|---|
| Vineyard in 1950 | 100% abandoned since: 0.68 ha, rows then ran 31° differentlyassessed over 6.3 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station LA ROCHEPOT, 417 m, 8.1 km away
growing season, April to October: 1951-1980: 14.1 °C, 1991-2020: 15.2 °C
Huglin index: 1951-1980: 1,528, 1991-2020: 1,726
last spring frost: 1951-1980: day 115, 1991-2020: day 108
raw daily series, not corrected for station breaks
The name
- mont
- hill or mountain. In Champagne the Montagne is a wooded plateau edge, not a mountain. Relief · Gérard Taverdet, Noms de lieux de Bourgogne (2007)
- folie
- a country retreat. From Old French feuillie for a leafy shelter, not from folly. Ownership and saints · Frédéric Godefroy, Dictionnaire de l'ancienne langue française (1881)
This is about the words, not about this plot: the same name can have arisen differently elsewhere.
Who owns land here
6.27 ha of 10.4 ha delimited is registered to a legal entity
- COMMUNE DE CHAGNY25%
- PHILIPPE CHAUTARD17%
- LA VIGNE DES AMIS14%
- SOC CIVILE VITIVOLE DOMAINE DE LA FOLIE4%
- private individuals or unknown40%
- 2.60 ha COMMUNE DE CHAGNY COM · public
- 1.80 ha PHILIPPE CHAUTARD SC · land company
- 1.45 ha LA VIGNE DES AMIS GFA · land company
- 0.42 ha SOC CIVILE VITIVOLE DOMAINE DE LA FOLIE SCEA · wine business
Private individuals or unknown: 4.16 ha.
Share of the delimited hectares. Only legal entities are public in France; everything else stays unnamed. From the public register of legal entities (DGFiP), as of 1 January 2025. The owner is not always the one who works the vineyard: tenancy is common.
Nearby lieux-dits
- Les Saints Jacques-Ouest Village · 200 m
- La Folie Village · 650 m
- Mollepierre-Sud Village · 700 m
- Le Fourneau-Sud Regional · 1.0 km
In the same village, measured between label points. That does not say which ones border each other; the map shows that.
Where each figure comes from
- Classification
- The INAO delimitation per denomination, cut against the cadastral parcel. Only the INAO's own plans are legally binding; this map is informational.
- Area
- Computed on the sphere from longitude and latitude (turf.area), not in Lambert-93. For an appellation this is the union of the INAO polygons across commune boundaries, measured on the unclosed geometry; the fifteen metres used to close the outline for the map are not counted. For a climat it is the union of the cadastral lieu-dit polygons with that name.
- Planted
- Parcel area times vineyard cover, where cover comes from the IGN vegetation layer supplemented by the agricultural declaration. Checked against the customs harvest declarations: median deviation 5.1 per cent over a hundred appellations.
- Elevation
- Mean of the elevation-model cells whose centre falls inside the polygon, on a 5 m grid.
- Slope
- Per-cell slope from the elevation model using Horn's method, then averaged over the cells in the polygon.
- Aspect
- Vector mean of the per-cell aspect. A plain average would turn north-east and north-west into south.
- Sun at harvest
- Hours of direct sun on 20 September under a clear sky, with the horizon in 36 directions out to six kilometres and the height of woods and buildings on top of it. Canopy height is measured where LiDAR HD covers the area and estimated from BD Forêt where it does not; the panel states which of the two was used.
- Grape variety by appellation
- Per appellation and colour the permitted varieties from the approved cahier des charges; per appellation and tier the declared hectares of white and red from the customs harvest declaration (product codes). One colour permitted: the main variety of that colour. Two colours: from 85 percent of the hectares that colour applies, in between it is called mixed. Champagne: the dominant variety from the planted hectares per variety per commune from FranceAgriMer. Per polygon the dominant variety of its parts by area. Derived, not measured: the variety per plot exists only in the customs vineyard register, which is not public. In a two-colour appellation a single plot may carry the other variety. Customs withhold small appellations (statistical secrecy), in which case the split is missing.
- Bedrock
- The geological unit covering the largest share of the polygon, from the 1:50,000 geological map. At 1:50,000 the map separates one climat from another, but not what varies inside a climat.
- Organic
- Share of the area certified organic or in conversion, from the CartoBio plot register.