These are all the texture mods that are hosted on ManiaPark.com.
Sorry they're not sorted by environment.

AdventCanyon.zip
AdventValley.zip
After-Storm Wetmod.zip
ALpha_SM.zip
ALpha_SM_558e7cd09371d.zip
Alpine_Beta_V3.zip
Alternative Valley.zip
AncientEgypt_Canyon.zip
AnghkorCanyon.Pack.Gbx
Angry Birds Mod.Pack.Gbx
Arizona Mod.Pack.Gbx
AtlanticaToursAirship.zip
Autumn Valley.zip
B0 Modified.zip
Biohazard_Canyon.zip
BlackCanyon.Pack.Gbx
BlueValley.zip
Bowsers Castle N64.zip
Burning Storm.zip
BWO_Canyon.zip
Canyon City.zip
Canyon Mod.Skin.Pack.Gbx
Canyon Mod_51ea351000a13.Skin.Pack.Gbx
Canyon with a Twist.zip
CanyonNoGrass.zip
chocogato.Pack.Gbx
CityofZ_Canyon.zip
Clean Cut.zip
ClearDirt.zip
Coast Mod.Pack.Gbx
Coast Mod.Skin.Pack.Gbx
Coast.zip
CoastCanyon.Pack.Gbx
ColdEvening_53df49160a08e.zip
Country Races.Pack.Gbx
Cryo_Canyon.zip
C_Rusty.zip
DarkValley_online.zip
Desert Mod.Pack.Gbx
Desert Storm.zip
DesertStadium.zip
Dome.zip
Dome_5df4f4d96962c.zip
DrazicMod.zip
DrazicMod_569134d0d9c41.zip
DrazicMod_5691486a4fd5f.zip
DrazicMod_56914b9a50b31.zip
Dusty_Sky.zip
Egypt.Skin.Pack.Gbx
eko_ween.zip
F1 Mod.Pack.Gbx
F1Street Circuit FULL.zip
FellrielsCelestial.zip
Flowering Canyon.Pack.Gbx
Formula One.zip
Frozen Storm.zip
GlacierCanyon.Pack.Gbx
GlobalVetzForCross.zip
GlobalVetz_AniCross_56cf120174640.zip
GLOW.Skin.Pack.Gbx
Grande Muraille.Skin.Pack.Gbx
GrandeMuraille_Canyon.zip
GreekAntiquity_Canyon.zip
Green-Canyon.zip
GreenStadium.zip
GreenValley.zip
HalfGrass.zip
Halloween Mod.Skin.Pack.Gbx
HalloweenMod.Skin.Pack.Gbx
HeavyMetal.zip
Help For Modder_500304ab39cc0.zip
HOMETOWN.Skin.Pack.Gbx
Icefields_Parkway.zip
Ice_Age.Pack.Gbx
IRAQ_Canyon.zip
IslaDeMuerta_Canyon.zip
Island Mod.Skin.Pack.Gbx
Jordan_Desert.zip
Jordan_Desert_2_Colorized.zip
JungleValley.zip
Jurassic Park Mod.Pack.Gbx
Karelia.Pack.Gbx
KN.AlphaStorm.zip
KN.BetaStorm.zip
KN.Wastelands.zip
Knights.Storm.zip
KnightsV2.Storm.zip
LagoonSnow.zip
LagoonXmas.zip
LagoonXmas_5c038096a4e49.zip
Lego Storm.Skin.Pack.Gbx
LEGO_Canyon.zip
Lego_City.zip
Loire Valley ND.zip
Loire Valley.zip
Luxor.zip
Mania Motorsport.zip
Marble.Pack.Gbx
Mario Circuit 3.zip
Mario Circuit Wii.zip
MassEffect_Canyon.Pack.Gbx
Medieval.zip
MedievalFantasy_Canyon.zip
Memory of Crete.zip
Metal-Ice-Mod2.zip
MightyFire.zip
Minecraft_mod.zip
mod_Verdon.Pack.Gbx
MoontainRacingPark.zip
MossyCanyon.Pack.Gbx
Mountain Altai.Pack.Gbx
MP4 Valley Texture Guide.zip
mud_by_chiwbicka.Pack.Gbx
MXMas19-Blue.zip
MXMas19-Red.zip
NascarMod.zip
NavArrow1.0.zip
Nebula.zip
NoGrassLagoonMod.zip
NoGrassLagoonMod_5bb467b37d9fa.zip
NoGrassLagoonMod_5bb4685e7e3c1.zip
NoGrassLagoonMod_5bb468b67906a.zip
NoGrassMod_52ed0131794f4.zip
nyelad.zip
OkmokCanyon_5523753bce29c.zip
Old and new storm.zip
Old Castle Mod.Pack.Gbx
Old storm B2.zip
OldB2Stormv2.zip
OldFactory.zip
Omega.zip
Other Canyon.Pack.Gbx
OutBack BC.zip
Parinacota.zip
Pirates of the Caribbean.Pack.Gbx
ProModHD by A-100-N.Skin.Pack.zip
Rally Mod.Pack.Gbx
RallyStadium.zip
Reactor4.zip
RealF1ModTM2.zip
RealWinter.zip
RedPlanetMod.zip
redrock.zip
Reduced Grass.zip
Relax_TM2.zip
Reread_Lanes_Mod.zip
RockyArea.Pack.Gbx
Romana_60ed39872a872.zip
RPG_Redrock_5498650b2362f.zip
SafariCanyon.Pack.Gbx
SaharaCanyon.Pack.Gbx
Sandstone-Mod.zip
SeasideHill.zip
Shrek Mod.Pack.Gbx
SilentHills_Canyon.zip
SilentTown_Canyon.zip
SimpleValleySnowBV2.zip
sky-alternative.zip
Smponey.zip
smtrak_croz.zip
smtrak_nite.zip
smtrak_rock.zip
smtrak_tech.zip
SM_Solo_modCelestial.zip
SM_Solo_modCitadel.zip
SM_Solo_modCityPath.zip
SM_Solo_modHorror.zip
SM_Solo_modInfinity.zip
SM_Solo_modMonastere.zip
SM_Solo_modRuins.zip
Snow Mod.Pack.Gbx
Snow Mod.Skin.Pack.Gbx
Snow Storm.Skin.Pack.Gbx
Snow Storm_51c735894254a.Skin.Pack.Gbx
SnowCanyon.zip
SnowStadium 3.zip
snowstorm.Pack.Gbx
SnowValley.zip
Snow_Storm.zip
Snow_Storm_locator_in.zip
Sonic the Hedgehog.Skin.Pack.Gbx
Stadium Mod.Pack.Gbx
StadiumHalloweenTextures.ZIP
Stadium_NoGrass_Mod.zip
Stadium_Rally.zip
Stone Wall.zip
StoneIsland.Pack.Gbx
StoneValley.zip
Storm Mod.Skin.Pack.Gbx
Street Style Mod.Pack.Gbx
STUNT-ISLAND MOD.Skin.Pack.Gbx
Super Mario World.Skin.Pack.Gbx
SuperElectroscope.zip
SuperElectroscope_5c8d42bfe6d03.zip
SuperElectroscope_5c8d43457d50a.zip
SuperMarioMod.zip
Terminator Mod.Pack.Gbx
Thawed Valley.zip
TheLostTribe_Canyon.zip
TM2StadiumDirtWorldMod2.zip
TMT_stadium.zip
TMU@FUN Mod.Pack.Gbx
TMUF.zip
TMUrally mod.Skin.Pack.Gbx
Toxic Planet.zip
TrackMania Storm.Skin.Pack.Gbx
Tron Stadium.Skin.Pack.Gbx
Tron.Pack.Gbx
tropical.zip
Tundra Texture Pack.Pack.Gbx
Unknown Land.Pack.Gbx
Urban_England.zip
Valley Mod.Skin.Pack.Gbx
Valley Texture Pack.Pack.Gbx
ValleyTextureGuide.zip
VisualTextureGuide_Canyon_HawkGer.zip
VisualTextureGuide_Stadium.zip
Volcano Mod Beta.Pack.Gbx
Vulcano_by_chiwbicka.Pack.Gbx
Wastelands.zip
White Christmas Mod.Skin.Pack.Gbx
White.zip
WhiteRock.Pack.Gbx
White_City.zip
Winter in Lagoon.zip
Winter Valley HD.Skin.Pack.Gbx
Winter Valley SD.Skin.Pack.Gbx
Winter Valley.Skin.Pack.Gbx
Winter.Pack.Gbx
WinterInLagoonV2_5de8192843cfe.zip
Winterland Mod.Skin.Pack.Gbx
WinterMod.Skin.Pack.Gbx
Winter_in_Lagoon_5c0111d6d7885.zip
_DS_ Wario Stadium.zip
_GCN_ Mushroom City.zip
_GCN_ Mushroom City_57e34cfa458ee.zip
_N64_ Rainbow Road.zip
_N64_ Toad_s Turnpike.zip
_StoneValley.zip
_Wii U_ Mario Circuit.zip
_Wii U_ Mario Kart Stadium.zip
_Wii U_ Mario Kart Stadium_5787f0c1a94a8.zip

Thank you soooo much! ❤

Hi all,
Actually i search the winter mod reality with a lot of snow lol for stadium dirt, So is it possible to upload in the forum?
Thanks

I think maybe these are the ones you're looking for:
https://ac.ozontm.de/stadium-x-mas-mods/

I'm having hard time telling Autumn Valley and Alternative Valley from each other. Is it possible that there's been a naming slip-up?

They're similar, but different filesizes and contain different files.

Maybe one was based on the other.