Lieu-dit · Montgueux
Le Cotet
Le Cotet is a lieu-dit in Montgueux, Côte des Bar, Champagne, whose largest tier is champagne.
1.31 ha
delimited
238 m
elevation
11.1 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 | Montgueux |
| Region | Côte des Bar, Champagne |
| Delimited | 1.31 hainao-aoc-viticoles-bulk (not in this commune) · cadastre-etalab (4 September 2026) |
| Planted | 1.10 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (4 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 11 |
| Grape variety | chardonnay 91 %, pinot noir 8 % 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) |
Place in the village
Among the 26 named plots ranked champagne in Montgueux, from high to low:
Position
238 m
elevation
18.6%
steep
E
east
shoulder
convex ridge
| Elevation | 238 m 228 to 248 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | −0.18 °C by day, relative to the village centre at 200 m, ± 0.05 °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 | 18.6% 10.6°ign-rge-alti (5 September 2026) |
| Aspect | east 83°ign-rge-alti (5 September 2026) |
| On the slope | 76% shoulder, on a convex ridge, 372 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 95%Coniacian and Santonian chalk 90–84 million years
- 5%Turonian white chalk, locally flint-bearing 91.5–89.8 million years
Not a borehole: ordered by age, thickness by share of surface.
In the glass. In so far as there is a tendency, it is towards fresh, linear wines with firm acidity, arising from the coolness and the even water supply. Often the thickness of the clay with flint on top determines more than the chalk itself. (weak indication)
Upper Cretaceous, roughly 90 to 84 million years old. This is true chalk: a white, soft and porous rock consisting almost entirely of the calcareous skeletons of microscopic plankton, settled in a calm, warm sea, with local bands of flint. Under the spade it breaks up into white grit, and on top usually lies a thin cover of clay with flint which in practice forms the topsoil.
For the vine. Chalk retains a great deal of water in very fine pores and releases it slowly, so that drought stress sets in later than the shallow soil depth would suggest, while excess rain still drains away. It is a cool subsoil that warms up late; that delays ripening, which in practice often goes together with higher acidity, and the roots penetrate deep along fissures. The active lime content of the soil is very high, so lime-tolerant rootstocks are no luxury here.
Coniacian and Santonian chalk comes to the surface in Bourgogne only in the far north-west of the Yonne, on the plateaux of the Pays d'Othe, largely outside the planted area.
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: c3, c2c.
brgm-bdcharm50 (4 September 2026)Sun and horizon
07:38
above the hill
18:41
behind the crest of the slope
11.1 h
sun at harvest
Grey: sun up, but behind the hill or the vineyard's own slope.
Around harvest the sun rises here at 07:38 above the hill and disappears at 18:41 behind the crest of the slope: 11.1 hours of direct sun on a clear day. The ridge reaches 9.8° above the horizon to the west.
| Irradiation | −1.9% versus flat land 1,005 kWh/m² from April to October, 46% 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 | 99.6% 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 | 05:48 | 20:43 | 14.9 h | 16.1 h |
| 20 September | 07:38 | 18:41 | 11.1 h | 12.3 h |
| 21 December | 08:55 | 15:44 | 6.8 h | 8.3 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), 20% of the far field is forest (BD Forêt), no buildings.
Air and cold
49 m
above the lowest point
drains far away
cold air
a gully
3.3 ha flows past
| Cold air | 49 m high on the slope, cold air drains far awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 3.3 ha a gully, mean over the polygon 0.30 haign-rge-alti (5 September 2026) |
Planting
ESE-WNW
diagonal to the slope
1.76 m
between the rows
100%
vineyard in 1950
| Rows | ESE-WNW (116°) diagonal to the slope (33°), every 1.76 m, all rows parallelmeasured over 0.8 of 1.1 ha plantedign-bdortho (6 September 2026) |
|---|---|
| Vineyard in 1950 | 100%assessed over 0.7 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station TROYES-BARBEREY, 112 m, 5.1 km away
raw daily series, not corrected for station breaks
Who owns land here
0.00 ha of 1.31 ha delimited is registered to a legal entity
- AFR DE MONTGUEUX AP DU 21 01 1976<1%
- private individuals or unknown100%
Private individuals or unknown: 1.30 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
- Bouillerate Champagne · 100 m
- Crot d'Enfer Champagne · 550 m
- Moulin Brûlé Champagne · 750 m
- Le Tertre Champagne · 900 m
- Haut Chutats Champagne · 1.0 km
- Le Village Champagne · 1.0 km
- La Grande Cote Champagne · 1.0 km
- Haut Revers du Chutat Champagne · 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.