Lieu-dit · Romanèche-Thorins
Les Rizailles
Les Rizailles is a lieu-dit in Romanèche-Thorins, Beaujolais in Saône-et-Loire, whose largest tier is regional.
1.40 ha
delimited
187 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 | Romanèche-Thorins |
| Region | Beaujolais in Saône-et-Loire |
| Delimited | 1.40 hainao-aoc-viticoles-bulk (c. 4 September 2026) · cadastre-etalab (4 September 2026) |
| Planted | 0.19 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (5 September 2026) · ign-rpg-2024 (5 September 2026) |
| Parcels | 10 |
| Grape variety | pinot noir, gamay also permitted: chardonnay, 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 16 named plots ranked regional in Romanèche-Thorins, from high to low:
Position
187 m
elevation
4.3%
gentle
NE
northeast
mid-slope
convex ridge
| Elevation | 187 m 184 to 189 mign-rge-alti (5 September 2026) |
|---|---|
| Daytime temperature | +0.19 °C by day, relative to the village centre at 215 m, ± 0.07 °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 | 4.3% 2.5°ign-rge-alti (5 September 2026) |
| Aspect | northeast 53°ign-rge-alti (5 September 2026) |
| On the slope | 22% mid slope, on a convex ridge, 132 m drains onto itign-rge-alti (5 September 2026) |
Bedrock
- 100%Recent alluvium of the valley floors 0.12–0 million years
In the glass. Tends towards supple, easy wine without much tension, suited to early drinking. This is a position in the landscape rather than a terroir with a signature of its own. (weak indication)
River and stream deposits in the floor of the valleys: gravel, sand, silt and clay, sorted into layers by running water. The material was laid down during the last ice age, roughly the past 120,000 years; the youngest deposits fall under Fz. It is by definition a mixture, because the composition depends on what the river carried down from upstream.
For the vine. Deep, easily rooted and often with a high water table, so the vine has ample water and easily develops too much vigour. Cold air sinks to the valley floor, so the spring frost risk is higher there than further up the slope. The more gravelly the deposit, the better the drainage and the more usable the site.
Mainly on the flat valley floors and at the foot of the slopes, where predominantly regional appellations lie.
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: Fy.
brgm-bdcharm50 (4 September 2026)Sun and horizon
07:32
above the hill
19:24
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 07:32 above the hill and disappears at 19:24 behind the hill: 11.9 hours of direct sun on a clear day. The ridge reaches 3.9° above the horizon to the southwest.
| Irradiation | −0.9% versus flat land 1,072 kWh/m² from April to October, 41% 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 | 99.8% 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 | 06:09 | 21:09 | 15.0 h | 15.8 h |
| 20 September | 07:32 | 19:24 | 11.9 h | 12.3 h |
| 21 December | 08:36 | 16:33 | 8.0 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), 21% of the far field is forest (BD Forêt), no buildings.
Air and cold
9 m
above the lowest point
comes close
cold air
a combe
41.1 ha flows past
| Cold air | 9 m low on the slope, cold air comes closeign-rge-alti (5 September 2026) |
|---|---|
| Cold air passing through | 41.1 ha a combe, mean over the polygon 1.36 haign-rge-alti (5 September 2026) |
Planting
E-W
diagonal to the slope
1.14 m
between the rows
100%
vineyard in 1950
| Rows | E-W (100°) diagonal to the slope (48°), every 1.14 m, all rows parallelmeasured over 0.2 of 0.2 ha plantedign-bdortho (5 September 2026) |
|---|---|
| Vineyard in 1950 | 100% abandoned since: 0.55 haassessed over 0.7 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026) |
Climate over time
station MACON, 219 m, 12.3 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 Vallieres Regional · 100 m
- La Chanillière Regional · 150 m
- La Sionniere Regional · 300 m
- La Petite Sionniere Regional · 350 m
- Les Jumeaux Regional · 350 m
- Les Belouses Regional · 450 m
- Champveau Regional · 500 m
- La Rivière Regional · 550 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.