Lieu-dit · Chissey-lès-Mâcon
En Gros Jean
En Gros Jean is a lieu-dit in Chissey-lès-Mâcon, Mâconnais, Burgundy, whose largest tier is regional.
5.25 ha
delimited
273 m
elevation
10.6 h
sun at harvest
Open on the mapWith the boundary, the plots, the sun through the year and the bedrock.
In figures
| Level | Regionalinao-aoc-viticoles-bulk (c. 4 September 2026) |
|---|---|
| Village | Chissey-lès-Mâcon |
| Region | Mâconnais, Burgundy |
| Delimited | 5.25 hainao-aoc-viticoles-bulk (c. 4 September 2026) · cadastre-etalab (4 September 2026) |
| Planted | 0.68 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (5 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 12 |
| Grape variety | chardonnay, pinot noir, pinot blanc, pinot gris, aligoté, melon, sacy also permitted: gamayinao-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 9 named plots ranked regional in Chissey-lès-Mâcon, from high to low:
Position
273 m
elevation
14.0%
steep
WNW
west-northwest
mid-slope
even slope
| Elevation | 273 m 262 to 288 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | +0.03 °C by day, relative to the village centre at 277 m, ± 0.01 °Cmeteo-france-quotidiennes (18 September 2026) · meteo-france-postes (6 September 2026) · meteo-france-lsh (6 September 2026) · ign-rge-alti (5 September 2026) |
| Slope | 14.0% 8.0°ign-rge-alti (5 September 2026) |
| Aspect | west-northwest 293°ign-rge-alti (5 September 2026) |
| On the slope | 27% mid slope, on an even plane, 367 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 50%Carixian to Toarcian dark clay 193–175 million years
- 42%Sinemurian limestone with gryphaea 199.5–193 million years
- 8%Triassic to Hettangian, undifferentiated about 235–199 million years
Not a borehole: ordered by age, thickness by share of surface.
In the glass. Tends towards fuller, darker wine with firm tannin and somewhat less aromatic finesse. This substrate says little on its own: slope position and soil depth determine almost everything here. (weak indication)
Dark, often black-grey clays and marls with interbeds of fossil-rich limestone, formed in a calm and temporarily oxygen-poor sea of the Early Jurassic. This is the classic Lias of Burgundy: soft, plastic and quick to weather, so it rarely reaches the surface clean. In the soil it feels heavy and greasy, with hard limestone nodules here and there and belemnites or ammonites.
For the vine. Heavy clay with a large water-holding capacity, cold and wet in spring and late in budburst, but with a reserve that counts in a hot summer. Drainage is the bottleneck, because without slope water sits on the clay and the roots suffocate. Active lime is usually limited, so chlorosis pressure is lower than on limestone, but the soil is fertile and calls for vigour control.
Occurs mainly on the edges of the Côte chalonnaise and the Mâconnais, where faults have brought the Lias up.
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: l3-4, l2, tA-l1.
brgm-bdcharm50 (4 September 2026)Sun and horizon
09:10
above the hill
19:43
below the flat horizon
10.6 h
sun at harvest
0.9 h
lost to the hill
Grey: sun up, behind the hill or its own slope.
Around harvest the sun rises here at 09:10 above the hill and disappears at 19:43 below the flat horizon: 10.6 hours of direct sun on a clear day. The ridge reaches 17.8° above the horizon to the east-southeast.
| Irradiation | −2.7% versus flat land 1,022 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, the caveat
| rise | set | sun | day | |
|---|---|---|---|---|
| 21 June | 07:18 | 21:37 | 14.3 h | 15.8 h |
| 20 September | 09:10 | 19:43 | 10.6 h | 12.3 h |
| 21 December | 10:36 | 16:56 | 6.3 h | 8.6 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), 39% of the far field is forest (BD Forêt), no buildings.
Air and cold
26 m
above the lowest point
drains far away
cold air
a gully
6.5 ha flows past
| Cold air | 26 m high on the slope, cold air drains far awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 6.5 ha a gully, mean over the polygon 0.52 haign-rge-alti (5 September 2026) |
Planting
ESE-WNW
down the slope
1.25 m
between the rows
100%
vineyard in 1950
| Rows | ESE-WNW (112°) down the slope (1°), every 1.25 m, all rows parallelmeasured over 0.7 of 0.7 ha plantedign-bdortho (6 September 2026) |
|---|---|
| Vineyard in 1950 | 100% abandoned since: 3.76 haassessed over 4.6 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station MT-ST-VINCENT, 601 m, 23.3 km away
growing season, April to October: 1951-1980: 13.5 °C, 1991-2020: 15.1 °C
Huglin index: 1951-1980: 1,248, 1991-2020: 1,553
last spring frost: 1951-1980: day 107, 1991-2020: day 101
series homogenised through 2022
The name
- grand
- large, usually relative to a smaller plot with the same name. Shape and position · Terroirium, Eigen telling over de namen in deze atlas (2026)
This is about the words, not about this plot: the same name can have arisen differently elsewhere.
Who owns land here
No parcel here is registered to a legal entity. In France only those owners are public; parcels of private individuals are not.
Nearby lieux-dits
- Le Beau Fetu Regional · 300 m
- Aux Aulx Regional · 400 m
- En Guerrin Regional · 400 m
- En Ceuchot Regional · 600 m
- En Monterin Regional · 1.0 km
- Champ Saint-Pierre Regional · 1.1 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.