Lieu-dit · Igé
Le Pontet
Le Pontet is a lieu-dit in Igé, Mâconnais, Burgundy, whose largest tier is regional.
0.89 ha
delimited
296 m
elevation
10.3 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 | Igé |
| Region | Mâconnais, Burgundy |
| Delimited | 0.89 hainao-aoc-viticoles-bulk (c. 4 September 2026) · cadastre-etalab (4 September 2026) |
| Planted | 0.02 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (5 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 10 |
| Grape variety | gamay also permitted: pinot noir, gamay de bouze, gamay de chaudenayinao-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 78 named plots ranked regional in Igé, from high to low:
Position
296 m
elevation
35.0%
very steep
SW
southwest
mid-slope
convex ridge
| Elevation | 296 m 281 to 310 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | +0.11 °C by day, relative to the village centre at 311 m, ± 0.02 °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 | 35.0% 19.3°ign-rge-alti (5 September 2026) |
| Aspect | southwest 224°ign-rge-alti (5 September 2026) |
| On the slope | 19% mid slope, on a convex ridge, 154 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 22%Modern alluvium of the rivers 0.012–0 million years
- 74%Aalenian crinoidal limestone and iron oolite 175–169 million years
- 4%Carixian to Toarcian dark clay 193–175 million years
Not a borehole: ordered by age, thickness by share of surface.
In the glass. Tends towards taut, tense white wine with plenty of definition and somewhat less flesh. How strongly that comes through depends mainly on the soil depth within the plot, which can vary greatly on this hard limestone.
Hard, crystalline limestone consisting almost entirely of finely broken stem segments of sea lilies, the entroques, piled up by currents on a shallow, agitated seabed. Fresh, the stone is blue-grey and glitters with calcite; at the surface it weathers to beige and rusty brown. It comes with thin layers of iron-bearing oolites and marly, siliceous limestone beds.
For the vine. Hard and compact, so the roots have to follow cracks and fissures; the soil above is usually shallow, stony and quick to dry. The shallow, stony soil warms up quickly, which can bring ripening forward, although aspect and slope weigh more heavily in that than the rock type. The active lime content can be high, and because the iron in the oolites is bound as oxide and barely available to the plant, it does not remove the chlorosis pressure; the choice of rootstock does.
In the Mâconnais the Aalenian usually lies hidden beneath slope scree at the foot of the cliffs; the rocks of Solutré and Vergisson themselves consist mainly of Bajocian Calcaire à entroques and Calcaire à polypiers.
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: j1-2a, Fz, l3-4.
brgm-bdcharm50 (4 September 2026)Sun and horizon
08:33
over the crest of the slope
18:49
behind the hill
10.3 h
sun at harvest
0.9 h
lost to the hill
Grey: sun up, but behind the hill or the vineyard's own slope.
Around harvest the sun rises here at 08:33 over the crest of the slope and disappears at 18:49 behind the hill: 10.3 hours of direct sun on a clear day. The ridge reaches 16.2° above the horizon to the north-northeast. The relief costs 1.1% of the irradiation from April to October, direct and diffuse together.
| Irradiation | +2.4% versus flat land 1,083 kWh/m² from April to October, 38% 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 | 95.4% 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 | 07:43 | 20:55 | 13.2 h | 15.8 h |
| 20 September | 08:33 | 18:49 | 10.3 h | 12.3 h |
| 21 December | 08:54 | 15:21 | 6.5 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), 40% of the far field is forest (BD Forêt), no buildings.
The irradiation loss does include clouds: the average of 2005 to 2023 (PVGIS-SARAH3, EU JRC), not any particular year.
Air and cold
23 m
above the lowest point
drains away
cold air
little inflow
1.1 ha flows past
| Cold air | 23 m above the hollow, cold air drains awayign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 1.1 ha little inflow, mean over the polygon 0.13 haign-rge-alti (5 September 2026) |
Planting
14%
vineyard in 1950
| Vineyard in 1950 | 14% abandoned since: 0.03 haassessed over 0.2 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
|---|
Climate over time
station MACON, 219 m, 13.1 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
0.12 ha of 0.89 ha delimited is registered to a legal entity
- DOMAINE DE ROCHEBIN11%
- COMMUNE DE IGE2%
- private individuals or unknown87%
- 0.10 ha CHARDIGNY MARILLIER GFA · land company
- 0.02 ha COMMUNE DE IGE COM · public
Private individuals or unknown: 0.77 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
- Champ Pagin Regional · 150 m
- La Fat Regional · 150 m
- Les Chaintres Regional · 200 m
- La Forêt Regional · 350 m
- La Herse Regional · 350 m
- Munet Regional · 400 m
- La Bruyère Regional · 400 m
- En Chevagnys Regional · 450 m
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.