Lieu-dit · Saint-Martin-Belle-Roche
En Bamout
En Bamout is a lieu-dit in Saint-Martin-Belle-Roche, Mâconnais, Burgundy, whose largest tier is regional.
0.22 ha
delimited
211 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 | Regionalinao-aoc-viticoles-bulk (c. 4 September 2026) |
|---|---|
| Village | Saint-Martin-Belle-Roche |
| Region | Mâconnais, Burgundy |
| Delimited | 0.22 hainao-aoc-viticoles-bulk (c. 4 September 2026) · cadastre-etalab (4 September 2026) |
| Planted | 0.09 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (5 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 1 |
| 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 11 named plots ranked regional in Saint-Martin-Belle-Roche, from high to low:
Position
211 m
elevation
3.4%
gentle
S
south
mid-slope
convex ridge
| Elevation | 211 m 210 to 211 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | −0.07 °C by day, relative to the village centre at 201 m, ± 0.01 °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 | 3.4% 2.0°ign-rge-alti (5 September 2026) |
| Aspect | south 180°ign-rge-alti (5 September 2026) |
| On the slope | 36% mid slope, on a convex ridge, 45 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 100%Heterogeneous slope deposits (colluvium and scree) jonger dan circa 0,13 (laat-Pleistoceen tot Holoceen)
In the glass. Many classified plots of the Côte actually root in colluvium and not in the rock the map shows beneath them. That makes this code important for viticulture and geologically uninformative, because what it gives depends on the mixture, the thickness and the slope.
This is not a rock but a mixture of stones, gravel, loam and clay that has slid, crept and washed down the slope, largely during the cold phases of the last ice ages. What it contains depends entirely on what outcrops higher up the slope, so the character can change over a few tens of metres. Largely late Pleistocene to Holocene, younger than about 130,000 years, with the bulk from the last ice age and still slowly moving on steep slopes.
For the vine. Physically this is often a favourable rooting environment: loose, airy, well drained thanks to the stone fraction, with enough fine material to hold moisture. Exactly how favourable depends on the thickness, which varies from a few decimetres to well over a metre and determines the water reserve more than the rock beneath does. A stony top layer warms strongly during the day and at the same time curbs evaporation, so the soil beneath stays moist longer than a bare soil.
Large parts of the slopes of the Côte lie on such deposits, above the rock shown on the map. Slope scree also occurs on the slopes of Chablis, although its extent there is less well documented.
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: Ch.
brgm-bdcharm50 (4 September 2026)Sun and horizon
07:26
above the flat horizon
19:21
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 07:26 above the flat horizon and disappears at 19:21 behind the hill: 11.9 hours of direct sun on a clear day. The ridge reaches 4.5° above the horizon to the west-northwest.
| Irradiation | +1.0% versus flat land 1,084 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) |
|---|
Three reference days and the caveat
| rise | set | sun | day | |
|---|---|---|---|---|
| 21 June | 05:58 | 21:06 | 15.1 h | 15.8 h |
| 20 September | 07:26 | 19:21 | 11.9 h | 12.3 h |
| 21 December | 08:23 | 16:41 | 8.3 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), 27% of the far field is forest (BD Forêt), no buildings.
Air and cold
20 m
above the lowest point
drains away
cold air
little inflow
0.1 ha flows past
| Cold air | 20 m above the hollow, cold air drains awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 0.1 ha little inflow, mean over the polygon 0.03 haign-rge-alti (5 September 2026) |
Planting
ESE-WNW
across the slope
1.37 m
between the rows
100%
vineyard in 1950
| Rows | ESE-WNW (103°) across the slope (77°), every 1.37 m, all rows parallelmeasured over 0.2 of 0.1 ha plantedign-bdortho (6 September 2026) |
|---|---|
| Vineyard in 1950 | 100%assessed over 0.5 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station MACON, 219 m, 10.7 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
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
- Les Verchères Calis Regional · 50 m
- Les Verchères Regional · 200 m
- Les Perrières Cailles Regional · 250 m
- Les Noyerettes Regional · 400 m
- Aux Creys Regional · 800 m
- Le Clos Joubert Regional · 900 m
- Vignes Blaisons 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.