| Links | MU Key | MU Symbol | National MU Symbol | MU Name | MU Acres |
| - | 3357564 | E42C1 | 2zwvz | Northern Seward Peninsula-Selawik Lowlands-Arctic Lowland-Coastal Plains, Low | 117187 |
| - | 3357565 | E42C2 | 2zwvy | Northern Seward Peninsula-Selawik Lowlands-Arctic Lowland-Coastal Plains | 437062 |
| - | 3375498 | E40LM2 | 314h5 | Nulato Hills-Southern Seward Peninsula Highlands-Maritime Upland-Rounded Mountains, Acid | 54146 |
| - | 3375499 | E40P1 | 314hb | Nulato Hills-Southern Seward Peninsula Highlands-Maritime Upland-Plains and Hills, Silty | 26587 |
| - | 3375500 | E41FP1 | 314hg | Seward Peninsula Highlands-Arctic Lowland-Flood Plains and Terraces | 21864 |
| - | 3375501 | E41LF | 314hh | Seward Peninsula Highlands-Arctic Upland-Barren Lava Flows | 91372 |
| - | 3375502 | E41LM2 | 314hk | Seward Peninsula Highlands-Arctic Upland-Rounded Mountains, Acid | 112512 |
| - | 3375503 | E41LM3 | 314hl | Seward Peninsula Highlands-Arctic Upland-Rounded Mountains, Calcareous | 21278 |
| - | 3375504 | E41P2 | 314hn | Seward Peninsula Highlands-Arctic Upland-Loess Plains | 615971 |
| - | 3375505 | E41P3 | 314hp | Seward Peninsula Highlands-Arctic Upland-Hills and Plains, Gravelly | 247357 |
| - | 3375506 | E41W1 | 314mn | Seward Peninsula Highlands-Water, Fresh | 17265 |
| - | 3375507 | E42FP1 | 314hs | Northern Seward Peninsula-Selawik Lowlands-Arctic Lowlands-Flood Plains and Terraces | 51673 |
| - | 3375508 | E42P2 | 314hv | Northern Seward Peninsula-Selawik Lowlands-Arctic Uplands-Plains, Silty | 630768 |
| - | 3375509 | E42W | 314mq | Northern Seward Peninsula-Selawik Lowlands-Water, Saline | 452065 |