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Lieu-dit · Trélou-sur-Marne

Montant a Rouvray

Montant a Rouvray is a lieu-dit in Trélou-sur-Marne, Vallée de la Marne, Champagne, whose largest tier is champagne.

2.41 ha

delimited

131 m

elevation

11.2 h

sun at harvest

Open on the mapWith the boundary, the plots, the sun through the year and the bedrock.

In figures

LevelChampagneinao-aoc-viticoles-bulk (not in this commune)
VillageTrélou-sur-Marne
RegionVallée de la Marne, Champagne
Delimited2.41 hainao-aoc-viticoles-bulk (not in this commune) · cadastre-etalab (4 September 2026)
Planted2.22 hacadastre-etalab (4 September 2026) · ign-bdtopo-vigne (4 September 2026) · ign-rpg-2024 (5 September 2026)
Parcels141
Grape varietymeunier 61 %, chardonnay 22 %, pinot noir 17 % 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)
Organic0%agence-bio-cartobio (c. 5 September 2026) · agence-bio-operateurs (5 September 2026)

Place in the village

Among the 127 named plots ranked champagne in Trélou-sur-Marne, from high to low:

sun at harvest 60
elevation 66
slope 60
on the slope 64

Position

131 m

elevation

14.5%

steep

S

south

mid-slope

even slope

Elevation131 m 111 to 150 mign-rge-alti (5 September 2026)
Slope14.5% 8.3°ign-rge-alti (5 September 2026)
Aspectsouth 183°ign-rge-alti (5 September 2026)
On the slope41% mid slope, on an even plane, 104 m drains onto itign-rge-alti (5 September 2026)

Bedrock

  • 69%Lutetian limestone, marl and caillasses about 45–⁠41 million years
  • 32%e5a-b age unknown
    Sable, calcaire, tuffeau de Damery

In the glass. In Champagne this substrate is associated with a fresher, tighter style than the surrounding sand. The plots are small; the influence is more a nuance in the blend than a style of its own. (weak indication)

Alternation of hard limestone beds, marl and rubbly 'caillasses' from the late Lutetian, Middle Eocene, deposited in a shallow warm sea on the edge of the Paris Basin. In the western Vallée de la Marne it forms a lime-rich step in the slope between the Eocene sand and the Brie plateaus.

For the vine. Shallow, dry and very lime-rich: free-draining and quick to warm, but with a lot of active lime and thus a chlorosis risk. The water regime depends on the marl beds.

Western Vallée de la Marne: Trélou-sur-Marne, Vallées-en-Champagne, Pavant.

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: e5cMC, e5a-b.

brgm-bdcharm50 (4 September 2026)

Sun and horizon

07:51

above the hill

19:00

behind the hill

11.2 h

sun at harvest

1.1 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 07:51 above the hill and disappears at 19:00 behind the hill: 11.2 hours of direct sun on a clear day. The ridge reaches 16.9° above the horizon to the north-northwest.

Irradiation+3.2% versus flat land 1,013 kWh/m² from April to October, 45% 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 sky98.9% 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 and the caveat
risesetsunday
21 June06:1920:2114.0 h16.2 h
20 September07:5119:0011.2 h12.3 h
21 December08:4916:257.6 h8.2 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), 34% of the far field is forest (BD Forêt), no buildings.

ign-rge-alti (5 September 2026) · ign-lidarhd-mnh (6 September 2026) · ign-bdforet-v2 (5 September 2026)

Air and cold

32 m

above the lowest point

drains far away

cold air

little inflow

1.1 ha flows past

Cold air32 m high on the slope, cold air drains far awayign-rge-alti (5 September 2026)
Cold air passing through1.1 ha little inflow, mean over the polygon 0.29 haign-rge-alti (5 September 2026)

Planting

NNE-SSW

down the slope

1.00 m

between the rows

92%

vineyard in 1950

RowsNNE-SSW (23°) down the slope (20°), every 1.00 m, all rows parallelmeasured over 0.5 of 2.2 ha plantedign-bdortho (6 September 2026)
Vineyard in 195092% planted since: 0.03 haassessed over 0.4 ha on the 1950-1965 aerial photographign-photos-historiques-1950-1965 (6 September 2026)

Climate over time

19802000202012°14°16°

station CHAMBRECY-CIVC, 150 m, 19.4 km away

raw daily series, not corrected for station breaks

The name

montant
the rising part of the slope. Relief · Terroirium, Eigen telling over de namen in deze atlas (2026)

This is about the words, not about this plot: the same name can have arisen differently elsewhere.

Who owns land here

1.35 ha of 2.41 ha delimited is registered to a legal entity

  • SV2B55%
  • SSION DE M SAVART PIERRE PAR LES HERITIERS1%
  • private individuals or unknown44%

Private individuals or unknown: 1.06 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

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.