How are these mangrove swamp seeds selected?

A Mangrove Swamp biome sample within 600 blocks of estimated spawn. The catalog generator checks each seed against this rule; the coordinates describe the same generation model used by our seed map.

Which Minecraft versions support this feature?

This feature first appeared in Java 1.19. Use the edition and version shown on the seed card. These Java lists do not verify Bedrock locations.

Best Mangrove Swamp Seeds

Start near mangrove wood, muddy terrain and warm swamp scenery. Each seed includes coordinates and a map.

Java Edition 26.3 · 50 seeds checked against category criteria

All 50 seeds

Also has nearby

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8292595568549857585

Mangrove Swamp sampled 11 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -476, 284 (Mangrove Swamp)
Stronghold: 2,910 blocks

Mangrove Swamp11
Ruined Portal269
Trial Chambers292
Village337
Jungle Temple468

Nearby biomes: Mangrove Swamp · Jungle · Savanna · Forest · Plains · Sparse Jungle

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-7582687194618693567

Mangrove Swamp sampled 11 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 32, -32 (Mangrove Swamp)
Stronghold: 1,823 blocks

Mangrove Swamp11
Trial Chambers202
Village279
Ruined Portal301
Jungle Temple453

Nearby biomes: Mangrove Swamp · Plains · Jungle · Dripstone Caves · Sparse Jungle · Savanna

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5894646663410644148

Mangrove Swamp sampled 11 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 12, -80 (Mangrove Swamp)
Stronghold: 1,386 blocks

Mangrove Swamp11
Desert Temple109
Ruined Portal276
Village338
Trial Chambers343

Nearby biomes: Desert · Mangrove Swamp · Warm Ocean · River

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-8647282187016081622

Mangrove Swamp sampled 11 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 240, 432 (Mangrove Swamp)
Stronghold: 2,016 blocks

Mangrove Swamp11
Jungle Temple229
Ruined Portal272
Trial Chambers276
Village324

Nearby biomes: Mangrove Swamp · Lukewarm Ocean · Plains · Jungle · Ocean · Deep Ocean

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-3914892013122635022

Mangrove Swamp sampled 11 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 24 (Mangrove Swamp)
Stronghold: 2,091 blocks

Mangrove Swamp11
Trial Chambers279
Village325
Ruined Portal341

Nearby biomes: Mangrove Swamp · Swamp · Plains · Savanna · Forest

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-6311126990802332507

Mangrove Swamp sampled 11 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 32, -64 (Mangrove Swamp)
Stronghold: 2,406 blocks

Mangrove Swamp11
Ruined Portal346
Village387
Trial Chambers395

Nearby biomes: Forest · Swamp · Mangrove Swamp · Savanna · Birch Forest

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1171760533651384910

Mangrove Swamp sampled 25 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 64, -96 (Mangrove Swamp)
Stronghold: 2,351 blocks

Mangrove Swamp25
Trial Chambers151
Ruined Portal258
Village306
Desert Temple427

Nearby biomes: Mangrove Swamp · Desert · Warm Ocean · Plains

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1325117089530789168

Mangrove Swamp sampled 25 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -32, 56 (Mangrove Swamp)
Stronghold: 2,251 blocks

Mangrove Swamp25
Trial Chambers115
Ruined Portal293
Village451

Nearby biomes: Mangrove Swamp · Savanna · Lukewarm Ocean · Windswept Savanna · Beach · Desert

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4382161061108071776

Mangrove Swamp sampled 25 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Savanna)
Stronghold: 1,529 blocks

Mangrove Swamp25
Village86
Ruined Portal176
Trial Chambers236

Nearby biomes: Mangrove Swamp · Savanna · Swamp · Beach

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Predicted biome map of Java 26.3 seed -4274071402523655217 around estimated spawn

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#10

-4274071402523655217

Mangrove Swamp sampled 34 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, -64 (Swamp)
Stronghold: 2,228 blocks

Mangrove Swamp34
Trial Chambers307
Ruined Portal378

Nearby biomes: Forest · Plains · Ocean · Mangrove Swamp · Flower Forest · Beach

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Predicted biome map of Java 26.3 seed 3052843562018890712 around estimated spawn

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#11

3052843562018890712

Mangrove Swamp sampled 41 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Savanna)
Stronghold: 2,512 blocks

Mangrove Swamp41
Ruined Portal176
Pillager Outpost249
Village279
Trial Chambers316
Woodland Mansion1,143

Nearby biomes: Savanna · Mangrove Swamp · Forest · Plains · River

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Predicted biome map of Java 26.3 seed 8234999601760160295 around estimated spawn

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#12

8234999601760160295

Mangrove Swamp sampled 41 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 128, -32 (Desert)
Stronghold: 2,300 blocks

Mangrove Swamp41
Trial Chambers213
Village304
Ruined Portal311
Pillager Outpost484

Nearby biomes: Desert · Warm Ocean · Mangrove Swamp · River

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Predicted biome map of Java 26.3 seed -7344878084949527281 around estimated spawn

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#13

-7344878084949527281

Mangrove Swamp sampled 41 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 288, -128 (Bamboo Jungle)
Stronghold: 2,063 blocks

Mangrove Swamp41
Ruined Portal151
Trial Chambers351
Village380
Desert Temple481

Nearby biomes: Deep Lukewarm Ocean · Mangrove Swamp · Lukewarm Ocean · Warm Ocean · Desert · River

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Predicted biome map of Java 26.3 seed 8283815519040851860 around estimated spawn

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#14

8283815519040851860

Mangrove Swamp sampled 41 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -144, 4 (Beach)
Stronghold: 1,323 blocks

Mangrove Swamp41
Village238
Ruined Portal252
Trial Chambers347

Nearby biomes: Savanna · Lukewarm Ocean · Plains · Mangrove Swamp · Deep Lukewarm Ocean · Sparse Jungle

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Predicted biome map of Java 26.3 seed -8944033604689186665 around estimated spawn

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#15

-8944033604689186665

Mangrove Swamp sampled 57 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 20 (Windswept Savanna)
Stronghold: 2,522 blocks

Mangrove Swamp57
Trial Chambers240
Ruined Portal308
Pillager Outpost467

Nearby biomes: Mangrove Swamp · Ocean · Beach · Windswept Savanna · Lukewarm Ocean · River

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Predicted biome map of Java 26.3 seed 5912317708508204543 around estimated spawn

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#16

5912317708508204543

Mangrove Swamp sampled 57 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Lush Caves)
Stronghold: 2,010 blocks

Mangrove Swamp57
Trial Chambers128
Jungle Temple320
Ruined Portal373

Nearby biomes: Jungle · Bamboo Jungle · Lush Caves · River · Mangrove Swamp · Sparse Jungle

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Predicted biome map of Java 26.3 seed 3567831752804018687 around estimated spawn

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#17

3567831752804018687

Mangrove Swamp sampled 61 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Jungle)
Stronghold: 2,060 blocks

Mangrove Swamp61
Ruined Portal187
Trial Chambers322

Nearby biomes: Lukewarm Ocean · Mangrove Swamp · Bamboo Jungle · Jungle · Beach · Sparse Jungle

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Predicted biome map of Java 26.3 seed 5744511580130411926 around estimated spawn

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#18

5744511580130411926

Mangrove Swamp sampled 72 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 48, -128 (Desert)
Stronghold: 1,739 blocks

Mangrove Swamp72
Ruined Portal279
Ocean Monument344
Trial Chambers416
Village423

Nearby biomes: Warm Ocean · Mangrove Swamp · Savanna · Plains · Sparse Jungle · Deep Lukewarm Ocean

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Predicted biome map of Java 26.3 seed 8459192412953712744 around estimated spawn

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#19

8459192412953712744

Mangrove Swamp sampled 72 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Desert)
Stronghold: 1,519 blocks

Mangrove Swamp72
Trial Chambers198
Desert Temple304
Ruined Portal443
Village473

Nearby biomes: Desert · Mangrove Swamp · Warm Ocean · River

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Predicted biome map of Java 26.3 seed 5703025953342634623 around estimated spawn

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#20

5703025953342634623

Mangrove Swamp sampled 76 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 16, 0 (Desert)
Stronghold: 2,143 blocks

Mangrove Swamp76
Desert Temple82
Village136
Trial Chambers213
Ruined Portal294

Nearby biomes: Desert · River · Sparse Jungle · Jungle · Savanna · Mangrove Swamp

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Predicted biome map of Java 26.3 seed -8863290190375229181 around estimated spawn

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#21

-8863290190375229181

Mangrove Swamp sampled 76 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -16, -48 (Savanna)
Stronghold: 1,472 blocks

Mangrove Swamp76
Trial Chambers238
Ruined Portal365
Village440

Nearby biomes: Lukewarm Ocean · Swamp · Savanna · Plains · Flower Forest · Forest

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Predicted biome map of Java 26.3 seed -2087173031880855246 around estimated spawn

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#22

-2087173031880855246

Mangrove Swamp sampled 88 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -16, 16 (Savanna)
Stronghold: 1,708 blocks

Mangrove Swamp88
Village215
Trial Chambers233
Ruined Portal443
Woodland Mansion828

Nearby biomes: Savanna · Lukewarm Ocean · Forest · Swamp · River · Ocean

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Predicted biome map of Java 26.3 seed 1587890485254781530 around estimated spawn

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#23

1587890485254781530

Mangrove Swamp sampled 88 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Forest)
Stronghold: 2,138 blocks

Mangrove Swamp88
Ruined Portal308
Trial Chambers330

Nearby biomes: Forest · Sparse Jungle · Plains · Savanna · Swamp · Beach

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Predicted biome map of Java 26.3 seed -7628350677118156601 around estimated spawn

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#24

-7628350677118156601

Mangrove Swamp sampled 104 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 16, -48 (Savanna)
Stronghold: 1,838 blocks

Mangrove Swamp104
Ruined Portal307
Trial Chambers387
Village405

Nearby biomes: Savanna · Mangrove Swamp · River · Jungle · Beach · Lukewarm Ocean

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Predicted biome map of Java 26.3 seed 2123575612898873244 around estimated spawn

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#25

2123575612898873244

Mangrove Swamp sampled 104 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Forest)
Stronghold: 2,470 blocks

Mangrove Swamp104
Trial Chambers244
Ruined Portal262

Nearby biomes: Forest · Savanna · Plains · Sparse Jungle · Mangrove Swamp · River

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Predicted biome map of Java 26.3 seed 205619781648596029 around estimated spawn

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#26

205619781648596029

Mangrove Swamp sampled 111 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Sparse Jungle)
Stronghold: 1,546 blocks

Trial Chambers72
Mangrove Swamp111
Ruined Portal192
Jungle Temple288
Ancient City453
Village493

Nearby biomes: Jungle · Plains · Forest · Lukewarm Ocean · Savanna · River

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Predicted biome map of Java 26.3 seed -5297074501831749364 around estimated spawn

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#27

-5297074501831749364

Mangrove Swamp sampled 120 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Desert)
Stronghold: 1,827 blocks

Mangrove Swamp120
Trial Chambers306
Desert Temple334
Village374
Ruined Portal389

Nearby biomes: Desert · River · Mangrove Swamp · Dripstone Caves

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Predicted biome map of Java 26.3 seed -451264738223841710 around estimated spawn

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#28

-451264738223841710

Mangrove Swamp sampled 126 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Desert)
Stronghold: 1,814 blocks

Mangrove Swamp126
Trial Chambers132
Ruined Portal377

Nearby biomes: Warm Ocean · Desert · Mangrove Swamp · Jungle · Lukewarm Ocean · River

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Predicted biome map of Java 26.3 seed -2596302725843448473 around estimated spawn

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#29

-2596302725843448473

Mangrove Swamp sampled 138 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Windswept Hills)
Stronghold: 1,471 blocks

Mangrove Swamp138
Trial Chambers245
Ruined Portal272
Village400

Nearby biomes: Plains · Savanna · Flower Forest · Forest · River · Windswept Savanna

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Predicted biome map of Java 26.3 seed 2032737555964401314 around estimated spawn

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#30

2032737555964401314

Mangrove Swamp sampled 140 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 80, -144 (Bamboo Jungle)
Stronghold: 1,953 blocks

Trial Chambers122
Ruined Portal138
Mangrove Swamp140
Jungle Temple288
Ocean Monument413

Nearby biomes: Jungle · Lukewarm Ocean · River · Bamboo Jungle · Deep Lukewarm Ocean · Beach

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Predicted biome map of Java 26.3 seed 8334180952633488505 around estimated spawn

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#31

8334180952633488505

Mangrove Swamp sampled 149 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 16, 0 (Savanna)
Stronghold: 1,668 blocks

Mangrove Swamp149
Trial Chambers163
Village218
Ruined Portal308

Nearby biomes: Savanna · Plains · Forest · Mangrove Swamp · Flower Forest · Windswept Hills

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Predicted biome map of Java 26.3 seed 2821948743432177356 around estimated spawn

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#32

2821948743432177356

Mangrove Swamp sampled 157 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 48 (Jungle)
Stronghold: 2,620 blocks

Ruined Portal129
Mangrove Swamp157
Jungle Temple240
Trial Chambers258
Village346

Nearby biomes: Lukewarm Ocean · Jungle · Beach · Mangrove Swamp · Plains · Savanna

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Predicted biome map of Java 26.3 seed 6039526243306958621 around estimated spawn

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#33

6039526243306958621

Mangrove Swamp sampled 170 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Savanna)
Stronghold: 2,282 blocks

Village145
Mangrove Swamp170
Trial Chambers215
Ruined Portal262

Nearby biomes: Lukewarm Ocean · Forest · Savanna · Beach · Plains · River

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Predicted biome map of Java 26.3 seed 6269253357046818147 around estimated spawn

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#34

6269253357046818147

Mangrove Swamp sampled 177 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 192, 112 (Windswept Savanna)
Stronghold: 2,626 blocks

Trial Chambers51
Mangrove Swamp177
Ruined Portal294

Nearby biomes: Savanna · Lukewarm Ocean · Mangrove Swamp · River · Beach

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Predicted biome map of Java 26.3 seed -5265236493535048698 around estimated spawn

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#35

-5265236493535048698

Mangrove Swamp sampled 177 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Swamp)
Stronghold: 1,443 blocks

Mangrove Swamp177
Ruined Portal274
Trial Chambers339

Nearby biomes: Swamp · Plains · Mangrove Swamp · Forest · Old Growth Birch Forest · Savanna

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Predicted biome map of Java 26.3 seed 1679256607039543848 around estimated spawn

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#36

1679256607039543848

Mangrove Swamp sampled 188 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Plains)
Stronghold: 1,927 blocks

Mangrove Swamp188
Ruined Portal340
Trial Chambers373
Village493

Nearby biomes: Sparse Jungle · Plains · Bamboo Jungle · Savanna · Forest · Mangrove Swamp

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Predicted biome map of Java 26.3 seed 558890280109284470 around estimated spawn

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#37

558890280109284470

Mangrove Swamp sampled 190 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Savanna)
Stronghold: 1,621 blocks

Village113
Mangrove Swamp190
Ruined Portal290
Trial Chambers330

Nearby biomes: Savanna · Mangrove Swamp · Forest · River · Lukewarm Ocean · Plains

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Predicted biome map of Java 26.3 seed -2192908968687001959 around estimated spawn

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#38

-2192908968687001959

Mangrove Swamp sampled 194 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Desert)
Stronghold: 1,399 blocks

Village167
Ruined Portal177
Mangrove Swamp194
Trial Chambers355

Nearby biomes: Desert · Badlands · Mangrove Swamp · River · Dripstone Caves · Wooded Badlands

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Predicted biome map of Java 26.3 seed 7682485984765874111 around estimated spawn

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#39

7682485984765874111

Mangrove Swamp sampled 216 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Savanna)
Stronghold: 2,566 blocks

Ruined Portal163
Trial Chambers213
Mangrove Swamp216
Jungle Temple405
Woodland Mansion967

Nearby biomes: Jungle · Savanna · Forest · River · Mangrove Swamp · Plains

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Predicted biome map of Java 26.3 seed 6389874791717824361 around estimated spawn

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#40

6389874791717824361

Mangrove Swamp sampled 220 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Plains)
Stronghold: 2,584 blocks

Mangrove Swamp220
Village294
Ruined Portal295
Trial Chambers314

Nearby biomes: Savanna · Sparse Jungle · Lukewarm Ocean · Plains · Mangrove Swamp · Windswept Savanna

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Predicted biome map of Java 26.3 seed -3106421513000291059 around estimated spawn

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#41

-3106421513000291059

Mangrove Swamp sampled 232 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -32, 0 (Forest)
Stronghold: 2,566 blocks

Mangrove Swamp232
Trial Chambers298
Pillager Outpost351
Ruined Portal430

Nearby biomes: Savanna · Plains · Forest · River · Desert · Mangrove Swamp

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Predicted biome map of Java 26.3 seed 3151988576872915680 around estimated spawn

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#42

3151988576872915680

Mangrove Swamp sampled 233 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Sulfur Caves)
Stronghold: 2,553 blocks

Ruined Portal116
Jungle Temple182
Mangrove Swamp233
Village306
Trial Chambers360

Nearby biomes: Jungle · Forest · Mangrove Swamp · River · Savanna · Sulfur Caves

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Predicted biome map of Java 26.3 seed -7018240075581741986 around estimated spawn

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#43

-7018240075581741986

Mangrove Swamp sampled 240 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -16, 64 (Dark Forest)
Stronghold: 2,623 blocks

Trial Chambers193
Mangrove Swamp240
Ruined Portal387
Ocean Monument408

Nearby biomes: Lukewarm Ocean · Dark Forest · Mangrove Swamp · Ocean · Deep Lukewarm Ocean · Old Growth Birch Forest

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Predicted biome map of Java 26.3 seed 2537421246385210726 around estimated spawn

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#44

2537421246385210726

Mangrove Swamp sampled 254 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, -32 (Forest)
Stronghold: 1,521 blocks

Trial Chambers66
Village215
Mangrove Swamp254
Ruined Portal258

Nearby biomes: Savanna · Forest · Ocean · Lukewarm Ocean · River · Birch Forest

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Predicted biome map of Java 26.3 seed 7582460667616077182 around estimated spawn

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#45

7582460667616077182

Mangrove Swamp sampled 260 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Desert)
Stronghold: 2,293 blocks

Jungle Temple148
Mangrove Swamp260
Trial Chambers266
Pillager Outpost320
Desert Temple385
Village397
Ruined Portal413

Nearby biomes: Desert · Bamboo Jungle · Wooded Badlands · Mangrove Swamp · River

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Predicted biome map of Java 26.3 seed 3597857718389141134 around estimated spawn

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#46

3597857718389141134

Mangrove Swamp sampled 270 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Forest)
Stronghold: 2,601 blocks

Trial Chambers218
Ruined Portal260
Mangrove Swamp270
Jungle Temple320
Village339

Nearby biomes: Savanna · Jungle · Forest · Sparse Jungle · River · Mangrove Swamp

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Predicted biome map of Java 26.3 seed -6706111044585283235 around estimated spawn

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#47

-6706111044585283235

Mangrove Swamp sampled 274 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -16, -48 (Forest)
Stronghold: 2,130 blocks

Ruined Portal170
Mangrove Swamp274
Trial Chambers384
Village417
Desert Temple488

Nearby biomes: Forest · Savanna · Jungle · River · Dripstone Caves · Mangrove Swamp

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Predicted biome map of Java 26.3 seed 1335472172524624107 around estimated spawn

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#48

1335472172524624107

Mangrove Swamp sampled 300 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 16, 0 (Jungle)
Stronghold: 1,946 blocks

Trial Chambers72
Ruined Portal284
Mangrove Swamp300
Village391
Ocean Monument497

Nearby biomes: Jungle · Forest · Plains · River · Savanna · Ocean

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Predicted biome map of Java 26.3 seed -2296864685184864879 around estimated spawn

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#49

-2296864685184864879

Mangrove Swamp sampled 305 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: 0, 0 (Old Growth Birch Forest)
Stronghold: 2,322 blocks

Trial Chambers102
Ruined Portal138
Mangrove Swamp305
Village342
Pillager Outpost366

Nearby biomes: Forest · Swamp · River · Plains · Jungle · Old Growth Birch Forest

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Predicted biome map of Java 26.3 seed -2008894995778136843 around estimated spawn

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#50

-2008894995778136843

Mangrove Swamp sampled 306 blocks from estimated spawn — open the map to explore the surrounding terrain.

Estimated spawn: -16, -16 (Jungle)
Stronghold: 1,891 blocks

Ruined Portal256
Trial Chambers295
Mangrove Swamp306
Village355

Nearby biomes: Forest · Plains · Swamp · Savanna · Jungle · River

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How this list is made

A Mangrove Swamp biome sample within 600 blocks of estimated spawn is required for every seed in this category. Lists are computed separately for the version printed on each card.

Distances use estimated world spawn. Biomes are sampled on a grid, and structure placement can depend on terrain. Confirm important locations in your world.

Want to scout any of these worlds first? Open a seed in the interactive seed map to pan the full world, toggle structures and copy teleport commands.

Playing a different version? This list is also verified separately for 26.3 · 1.21.4 · 1.20 · 1.19 — worldgen changes between versions, so each list has its own generation version.

Frequently asked questions

How are these mangrove swamp seeds selected?: A Mangrove Swamp biome sample within 600 blocks of estimated spawn. The catalog generator checks each seed against this rule; the coordinates describe the same generation model used by our seed map.
Which Minecraft versions support this feature?: This feature first appeared in Java 1.19. Use the edition and version shown on the seed card. These Java lists do not verify Bedrock locations.