Lieu-dit · Vavray-le-Petit
Grand Mont
Grand Mont is a lieu-dit in Vavray-le-Petit, Côte de Sézanne, Champagne, whose largest tier is champagne.
17.7 ha
delimited
170 m
elevation
11.9 h
sun at harvest
Open on the mapWith the boundary, the plots, the sun through the year and the bedrock.
In figures
| Level | Champagneinao-aoc-viticoles-bulk (not in this commune) |
|---|---|
| Village | Vavray-le-Petit |
| Region | Côte de Sézanne, Champagne |
| Delimited | 17.7 hainao-aoc-viticoles-bulk (not in this commune) · cadastre-etalab (4 September 2026) |
| Planted | 17.3 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (4 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 45 |
| Grape variety | chardonnay 100 % also permitted: arbane, petit meslier, pinot blanc, 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) |
Position
170 m
elevation
17.1%
steep
S
south
upper
concave fold
| Elevation | 170 m 146 to 196 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | ±0.00 °C not measurable: smaller than the uncertainty. by day, relative to the village centre at 170 m, ± 0.08 °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 | 17.1% 9.7°ign-rge-alti (5 September 2026) |
| Aspect | south 177°ign-rge-alti (5 September 2026) |
| On the slope | 46% upper slope, in a concave hollow, 161 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 34%Turonian white chalk, locally flint-bearing 91.5–89.8 million years
- 66%Clayey, nodular chalk of the Turonian about 94–92 million years
Not a borehole: ordered by age, thickness by share of surface.
In the glass. In the Vitryat mainly Chardonnay: fresh, slender base wines with high acidity and less richness than the Côte des Blancs. A small, peripheral area; the substrate helps explain the restrained style.
Grey, clayey chalk with nodular limestone beds, deposited in a deeper, calmer sea in the Lower and Middle Turonian. Older and less pure than the white Campanian chalk of the Côte des Blancs; outcrops in the Perthois and the Vitryat, in the south-east of the Marne.
For the vine. Marly chalk: holds more water than pure chalk, warms more slowly and contains a lot of active lime. Drains reasonably well through the fissures in the limestone beds. Cold, late ground on flat to gently rolling land.
Vitryat and Perthois: Vitry-en-Perthois, Bassu, Bassuet, Vavray-le-Grand, Vavray-le-Petit, Val-de-Vière, Glannes, Saint-Lumier-en-Champagne, Vanault-le-Châtel.
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: c2a-b, c2c.
brgm-bdcharm50 (4 September 2026)Sun and horizon
07:33
above the hill
19:30
behind the hill
11.9 h
sun at harvest
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 19:30 behind the hill: 11.9 hours of direct sun on a clear day. The ridge reaches 13.3° above the horizon to the north.
| Irradiation | +4.1% versus flat land 1,037 kWh/m² from April to October, 44% 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) |
|---|
Three reference days and the caveat
| rise | set | sun | day | |
|---|---|---|---|---|
| 21 June | 06:27 | 20:51 | 14.4 h | 16.2 h |
| 20 September | 07:33 | 19:30 | 11.9 h | 12.3 h |
| 21 December | 08:33 | 16:46 | 8.2 h | 8.2 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), 17% of the far field is forest (BD Forêt), no buildings.
Air and cold
26 m
above the lowest point
drains far away
cold air
little inflow
1.1 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 | 1.1 ha little inflow, mean over the polygon 0.18 haign-rge-alti (5 September 2026) |
Planting
N-S
down the slope
1.07 m
between the rows
78%
vineyard in 1950
| Rows | N-S (176°) down the slope (1°), every 1.07 m, all rows parallelmeasured over 17.3 of 17.3 ha plantedign-bdortho (6 September 2026) |
|---|---|
| Vineyard in 1950 | 78% planted since: 3.27 haassessed over 15.0 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station ST-DIZIER, 139 m, 23.8 km away
growing season, April to October: 1951-1980: 14.4 °C, 1991-2020: 15.9 °C
Huglin index: 1951-1980: 1,570, 1991-2020: 1,842
last spring frost: 1951-1980: day 119, 1991-2020: day 103
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)
- 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)
This is about the words, not about this plot: the same name can have arisen differently elsewhere.
Who owns land here
2.31 ha of 17.7 ha delimited is registered to a legal entity
- LES CHAMPS RENIERS4%
- M H C S4%
- DES GRANDS MONTS3%
- CHAMPAGNE GH MARTEL ET CIE2%
- TAITTINGER CIE CCIALE ET VITICOLE CHAMPEN<1%
- private individuals or unknown87%
- 0.68 ha LES CHAMPS RENIERS SAS · other
- 0.67 ha M H C S SA · other · usufruct 0.32 ha
- 0.48 ha DES GRANDS MONTS SCEA · wine business
- 0.43 ha CHAMPAGNE GH MARTEL ET CIE SAS · wine business
- 0.06 ha TAITTINGER CIE CCIALE ET VITICOLE CHAMPEN SAS · wine business · emphyteusis
Private individuals or unknown: 15.4 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.
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.