Mountain Ring Crater with an Ancient City and Woodland Mansion — Java 26.3

A Grove valley ringed by peaks, with an Ancient City about 171 blocks from spawn and a mansion to the west.

Top-down 2D biome map centred on a spawn marker in a Grove, with structure markers for a ruined portal, Ancient City, shipwreck and Woodland Mansion scattered around the surrounding biomes.
Java 26.3 Edition Java Spawn 72, 8 Biome Grove Structures 4
Ancient CityWoodland MansionAll BiomesFlower ForestForestGroveOceanPlainsSavannaTaigaRuined PortalShipwreck
Open in the seed map →
Seed 8188162778874593379

Copy it into Minecraft 26.3 (Java).

You spawn in a Grove at the bottom of a valley, with ground at least 40 blocks higher in most directions and the tallest rim about 104 blocks above the floor. An Ancient City sits about 171 blocks south-east of spawn, and a Ruined Portal is about 114 blocks south-east. The Woodland Mansion is a longer trip, about 821 blocks west, while the Stronghold is about 1720 blocks out.

Structures near spawn
Ruined Portal ↘ SE 144, 96 114
Ancient City ↘ SE 176, 144 171
Shipwreck ↖ NW -208, -368 469
Woodland Mansion ← W -720, 224 821
Biome mix near spawn
Ocean 12%
Forest 11%
Cold Ocean 10%
Plains 9%
Savanna 9%
River 7%
Taiga 7%