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Lieu-dit · Chaintré

Lès Grandes Vernes

Lès Grandes Vernes is a lieu-dit in Chaintré, Mâconnais, Burgundy, whose largest tier is regional.

3.63 ha

delimited

258 m

elevation

10.7 h

sun at harvest

Open on the mapWith the boundary, the plots, the sun through the year and the bedrock.

In figures

LevelRegional 51%
Village 49%inao-aoc-viticoles-bulk (c. 4 September 2026)
VillageChaintré
RegionMâconnais, Burgundy
Delimited3.63 hainao-aoc-viticoles-bulk (c. 4 September 2026) · cadastre-etalab (4 September 2026)
Planted1.26 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (5 September 2026) · ign-rpg-2024 (5 September 2026)
Parcels7
Grape varietychardonnay, 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)
Organic0%agence-bio-cartobio (c. 5 September 2026) · agence-bio-operateurs (5 September 2026)

Place in the village

Among the 15 named plots ranked regional in Chaintré, from high to low:

sun at harvest 15th
elevation 1st
slope 1st
on the slope 10th

Position

258 m

elevation

14.3%

steep

ENE

east-northeast

mid-slope

convex ridge

Elevation258 m 251 to 263 mign-rge-alti (5 September 2026)
Daytime temperature−0.13 °C by day, relative to the village centre at 236 m, ± 0.02 °Cmeteo-france-quotidiennes (18 September 2026) · meteo-france-postes (6 September 2026) · meteo-france-lsh (6 September 2026) · ign-rge-alti (5 September 2026)
Slope14.3% 8.2°ign-rge-alti (5 September 2026)
Aspecteast-northeast 75°ign-rge-alti (5 September 2026)
On the slope28% mid slope, on a convex ridge, 246 m drains onto itign-rge-alti (5 September 2026)

Bedrock

  • 100%Subvolcanic granitoid (Viséan) about 340–⁠331 million years

In the glass. Little has been published on this. It is expected to behave much like granite, with fragrance and finesse rather than mass, but that is reasoning from the rock and not observation. (weak indication)

Magma that stalled just below the surface and therefore cooled faster than deep granite: fine-grained, hard rocks such as microgranite and porphyry, around 340 to 331 million years old. It belongs to the same volcanic episode as the tuffs and often occurs as dykes cutting through older rock. At the surface it breaks down into angular grit and gravel with hard blocks in it, coarser than the arène of the deep granite.

For the vine. Acid and lime-free, so chlorosis plays no role here. The ground is gravelly and free-draining, warms readily and holds a small water reserve, so drought in hot years is more of a problem than wet feet. Roots have to find their way along fissures in the hard rock, which forces the vine to go deep.

No verifiable outcrop example included; the unit occurs mainly as dykes within the old massif of the Beaujolais.

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: h2γ.

brgm-bdcharm50 (4 September 2026)

Sun and horizon

08:10

above the hill

18:54

behind the crest of the slope

10.7 h

sun at harvest

0.7 h

lost to the hill

Grey: sun up, behind the hill or its own slope.

Around harvest the sun rises here at 08:10 above the hill and disappears at 18:54 behind the crest of the slope: 10.7 hours of direct sun on a clear day. The ridge reaches 11.5° above the horizon to the north. The relief costs 0.7% of the irradiation from April to October, direct and diffuse together.

Irradiation−2.5% versus flat land 1,046 kWh/m² from April to October, 40% 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 sky97.3% 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
risesetsunday
21 June06:5920:4213.7 h15.8 h
20 September08:1018:5410.7 h12.3 h
21 December09:1716:016.7 h8.6 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), 24% of the far field is forest (BD Forêt), no buildings.

The irradiation loss does include clouds: the average of 2005 to 2023 (PVGIS-SARAH3, EU JRC), not any particular year.

ign-rge-alti (5 September 2026) · ign-lidarhd-mnh (6 September 2026) · ign-bdforet-v2 (5 September 2026)

Air and cold

11 m

above the lowest point

drains away

cold air

a main drain

155.9 ha flows past

Cold air11 m above the hollow, cold air drains awayign-rge-alti (5 September 2026)
Cold air passing through155.9 ha a main drain, mean over the polygon 5.73 haign-rge-alti (5 September 2026)

Planting

ENE-WSW

down the slope

1.12 m

between the rows

93%

vineyard in 1950

RowsENE-WSW (74°) down the slope (1°), every 1.12 m, all rows parallelmeasured over 1.7 of 1.3 ha plantedign-bdortho (5 September 2026)
Vineyard in 195093% abandoned since: 0.39 ha, rows then ran 39° differentlyassessed over 0.9 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026)

Climate over time

196019802000202014°16°18°20°

station MACON, 219 m, 4.5 km away

growing season, April to October: 1951-1980: 15.4 °C, 1991-2020: 17.1 °C

Huglin index: 1951-1980: 1,718, 1991-2020: 2,022

last spring frost: 1951-1980: day 96, 1991-2020: day 85

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)
vernay
alder, from Gaulish verno. A tree of wet ground, so usually at the foot of the slope. Vegetation · 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

1.85 ha of 3.63 ha delimited is registered to a legal entity

  • GFA CHATEAU DE LAVERNETTE49%
  • SCI CHATEAU DE LAVERNETTE2%
  • SARL LES ROBEES<1%
  • private individuals or unknown49%

Private individuals or unknown: 1.78 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

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.