Lieu-dit · Lugny
Saint Pierre
Saint Pierre is a lieu-dit in Lugny, Mâconnais, Burgundy, whose largest tier is regional.
45.8 ha
delimited
283 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 | Regionalinao-aoc-viticoles-bulk (c. 4 September 2026) |
|---|---|
| Village | Lugny |
| Region | Mâconnais, Burgundy |
| Delimited | 45.8 hainao-aoc-viticoles-bulk (c. 4 September 2026) · cadastre-etalab (4 September 2026) |
| Planted | 31.3 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (5 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 139 |
| 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 | 4%agence-bio-cartobio (c. 5 September 2026) · agence-bio-operateurs (5 September 2026) |
Place in the village
Among the 39 named plots ranked regional in Lugny, from high to low:
Position
283 m
elevation
12.1%
steep
SSE
south-southeast
upper
even slope
| Elevation | 283 m 232 to 315 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | −0.18 °C by day, relative to the village centre at 258 m, ± 0.04 °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 | 12.1% 6.9°ign-rge-alti (5 September 2026) |
| Aspect | south-southeast 165°ign-rge-alti (5 September 2026) |
| On the slope | 54% upper slope, on an even plane, 140 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 33%Lithographic limestone, Lower Kimmeridgian 155–152 million years
- 24%Nantoux limestone and Mercurey marl 157–155 million years
- 5%Oolitic limestone, marl and chailles (late Bathonian to Callovian) 165.5–161.5 million years
- 14%Massive Bathonian limestone, dolomitic top 166.5–165.3 million years
- 18%Bathonian oolite and fine-grained limestone 168–166 million years
- 6%Bajocian to Bathonian marl 169–166 million years
Not a borehole: ordered by age, thickness by share of surface.
In the glass. Associated with taut wine with a pronounced line of acidity. Whether that is down to the rock or to the thin, warm, fast-drying soil above has not been settled; harvest timing and yield weigh more heavily. (weak indication)
Extremely fine-grained, dense limestone: lime mud that settled grain by grain in still, shallow and warm water. The term lithographic refers to the fineness of grain, because rock of this type was quarried elsewhere, at Solnhofen, as printing stone. It breaks with a smooth, almost porcelain-like surface and lies in even beds; Lower Kimmeridgian, about 155 to 152 million years old.
For the vine. Dense and barely porous, so water moves almost only through cracks and along the bedding. The soil on top is thin and stony, unless a slope deposit lies over it, and it dries out quickly in July and August. A stony surface layer warms up quickly during the day; how much of that reaches the bunch depends on aspect and row orientation, and the high active lime content remains a point of attention.
Occurs in the Châtillonnais and the Tonnerrois as a hard bed within the Kimmeridgian sequence, rarely planted on its own.
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: j6b, j5c, j3a, j3c, j2b-3a, j3c-4.
brgm-bdcharm50 (4 September 2026)Sun and horizon
07:54
above the hill
19:02
behind the hill
11.1 h
sun at harvest
1.0 h
lost to the hill
Grey: sun up, behind the hill or its own slope.
Around harvest the sun rises here at 07:54 above the hill and disappears at 19:02 behind the hill: 11.1 hours of direct sun on a clear day. The ridge reaches 8.5° above the horizon to the northwest.
| Irradiation | +2.7% versus flat land 1,091 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 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 | 06:32 | 20:41 | 14.2 h | 15.8 h |
| 20 September | 07:54 | 19:02 | 11.1 h | 12.3 h |
| 21 December | 09:02 | 16:16 | 7.2 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), 38% of the far field is forest (BD Forêt), no buildings.
Air and cold
44 m
above the lowest point
drains far away
cold air
a gully
5.3 ha flows past
| Cold air | 44 m high on the slope, cold air drains far awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 5.3 ha a gully, mean over the polygon 0.17 haign-rge-alti (5 September 2026) |
Planting
ESE-WNW
across the slope
1.34 m
between the rows
93%
vineyard in 1950
| Rows | ESE-WNW (103°) across the slope (62°), every 1.34 m, varies by plotmeasured over 31.1 of 31.3 ha plantedign-bdortho (6 September 2026) |
|---|---|
| Vineyard in 1950 | 93% abandoned since: 3.74 ha, planted since: 1.11 haassessed over 29.7 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station MACON, 219 m, 21.2 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
- saint
- a saint, usually the patron of the church or of the order that owned the ground. Clos Saint-Jean and Clos Saint-Denis carry their owner in their name. Ownership and saints · Association des Climats du vignoble de Bourgogne, Les noms des Climats (2026)
- pierre
- stone, usually a loose block or a stony spot. Soil and stone · 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
13.0 ha of 45.8 ha delimited is registered to a legal entity
- SOC CIVILE D'EXPLOIT VITICOLE E BLANC7%
- COMMUNE DE LUGNY7%
- GAEC LUGNY BISSY VINCENT6%
- CHAMBRE D AGRICULTURE DE SAONE ET LOIRE6%
- GROUPEMENT FONCIER AGRICOLE DU VERNET DERAIN MEYER1%
- 2 other legal entities1%
- private individuals or unknown72%
- 3.21 ha SOC CIVILE D'EXPLOIT VITICOLE E BLANC SCEA · wine business
- 3.18 ha COMMUNE DE LUGNY COM · public
- 2.82 ha GAEC LUGNY BISSY VINCENT AUPM · other
- 2.59 ha CHAMBRE D AGRICULTURE DE SAONE ET LOIRE EPA · other
- 0.60 ha GROUPEMENT FONCIER AGRICOLE DU VERNET DERAIN MEYER AUPM · other
- 0.52 ha GAYET-COMTE GFA · land company
- 0.11 ha SYNDICAT INTERCOMMUNAL DES EAUX DU HAUT-MACONNAIS AUPM · other
Private individuals or unknown: 32.8 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
- Sur le Pré de Laveau Regional · 500 m
- Saint-Pierre-Est Regional · 500 m
- Saint-Pierre-Nord Regional · 550 m
- Collongette Regional · 750 m
- Le Bourg Regional · 850 m
- Le Grand Bois Regional · 1.0 km
- Les Charmes-Sud 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.