Lieu-dit · Cunfin
Bois Creux
Bois Creux is a lieu-dit in Cunfin, Côte des Bar, Champagne, whose largest tier is champagne.
7.95 ha
delimited
257 m
elevation
11.4 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 | Cunfin |
| Region | Côte des Bar, Champagne |
| Delimited | 7.95 hainao-aoc-viticoles-bulk (not in this commune) · cadastre-etalab (4 September 2026) |
| Planted | 7.14 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (4 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 20 |
| Grape variety | pinot noir 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
257 m
elevation
26.7%
very steep
SSE
south-southeast
mid-slope
convex ridge
| Elevation | 257 m 235 to 279 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | +0.04 °C by day, relative to the village centre at 266 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) |
| Slope | 26.7% 14.9°ign-rge-alti (5 September 2026) |
| Aspect | south-southeast 168°ign-rge-alti (5 September 2026) |
| On the slope | 34% mid slope, on a convex ridge, 141 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 100%Hydraulic limestone of Mussy and limestone of Vermenton about 158–156 million years (Boven-Oxfordien)
In the glass. In the Barséquanais around Mussy and Cunfin the substrate of firm Pinot Noir for the Côte des Bar. Comparable with the Kimmeridgian marl, slightly drier and stonier. (weak indication)
Clayey, fine-grained 'hydraulic' limestone (formerly burnt for water-resistant lime) from Mussy-sur-Seine, with the harder limestone of Vermenton above it; together the Upper Oxfordian of the Côte des Bar. Deposited in a shallow sea with periods of clay input.
For the vine. Lime-rich and moderately draining: the clayey beds hold water, the hard beds drain. Well rootable on slopes; chlorosis risk from active lime.
Côte des Bar: Mussy-sur-Seine, Cunfin.
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: j5cM.
brgm-bdcharm50 (4 September 2026)Sun and horizon
07:44
above the hill
19:11
behind the hill
11.4 h
sun at harvest
0.5 h
lost to the hill
Grey: sun up, behind the hill or its own slope.
Around harvest the sun rises here at 07:44 above the hill and disappears at 19:11 behind the hill: 11.4 hours of direct sun on a clear day. The ridge reaches 19.5° above the horizon to the north.
| Irradiation | +4.9% versus flat land 1,035 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 | 98.9% 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 | 06:34 | 20:24 | 13.8 h | 16.1 h |
| 20 September | 07:44 | 19:11 | 11.4 h | 12.3 h |
| 21 December | 08:59 | 16:41 | 7.7 h | 8.4 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), 57% of the far field is forest (BD Forêt), no buildings.
Air and cold
32 m
above the lowest point
drains far away
cold air
a gully
2.6 ha flows past
| Cold air | 32 m high on the slope, cold air drains far awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 2.6 ha a gully, mean over the polygon 0.15 haign-rge-alti (5 September 2026) |
Planting
N-S
down the slope
1.24 m
between the rows
88%
vineyard in 1950
| Rows | N-S (170°) down the slope (2°), every 1.24 m, varies by plotmeasured over 6.8 of 7.1 ha plantedign-bdortho (6 September 2026) |
|---|---|
| Vineyard in 1950 | 88% planted since: 0.93 ha, rows then ran 33° differentlyassessed over 7.5 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station CHATILLON/SEINE, 262 m, 22.4 km away
growing season, April to October: 1951-1980: 13.6 °C, 1991-2020: 15.0 °C
Huglin index: 1951-1980: 1,453, 1991-2020: 1,716
last spring frost: 1951-1980: day 128, 1991-2020: day 124
series homogenised through 2022
The name
- bois
- wood, or ground bordering a wood. The third most common element in this atlas. Vegetation · Terroirium, Eigen telling over de namen in deze atlas (2026)
- creux
- hollow, dip. 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
2.26 ha of 7.95 ha delimited is registered to a legal entity
- COMMUNE DE CUNFIN28%
- private individuals or unknown72%
- 2.26 ha COMMUNE DE CUNFIN COM · public
Private individuals or unknown: 5.69 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.