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MESA Project (Most Environmentally Sensitive Areas)
Oil Spill Contingency Maps

As part of the Alaska Department of Fish and Game’s participation in the review of oil spill contingency plans, the Habitat and Restoration Division (H&R) identified 68 of the most environmentally sensitive areas (MESAs) along the Alaska coastline that could be impacted by a marine spill. This information was originally developed at the request of the Alaska Department of Environmental Conservation (DEC) to assist non-crude oil barge operators in determining whether additional protection strategies were to be included in their oil discharge prevention and contingency plans. These MESAs should not be considered a complete list of highly sensitive areas in Alaska. ADF&G is the source for data in MESA Atlas Volume I. MESA Atlas Volume II depicts data from four sources: ADF&G, NOAA, Dames and Moore Group (URS Corp.), and EMCON Alaska Inc.(SLR International Corp.). The downloadable data on this page contains data from ADF&G and the Dames and Moore Group.

For current ADF&G anadromous fish data visit the Anadromous Waters Catalog — GIS Data page.

For updated NOAA data, visit the NOAA Office of Response and Restoration website.

Work on data from EMCON Alaska Inc. is in progress.

See Oil Spill Contingency Planning: Volume 1 (file unavailable) and Oil Spill Contingency Planning: Volume 2 (file unavailable) for additional information.

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Species Shapefiles

You may download species shapefiles individually below, or use the following links to download species shapefiles for Volume 1 (all species) (file unavailable) and Volume 2 (all species) (file unavailable).

Species Volume 1 Volume 2
Bear Bear (ADF&G) Vol 1 (file unavailable) Bear (ADF&G) Vol 2 (file unavailable)
Beluga Whale Beluga Whale (ADF&G) Vol 1 (file unavailable) Beluga Whale (ADF&G) Vol 2 (file unavailable)
Birds Birds (ADF&G) Vol 2 (file unavailable)
Blue Mussel Blue Mussel (ADF&G) Vol 2 (file unavailable)
Common Eider Common Eider (ADF&G) Vol 1 (file unavailable)
Deer Deer (ADF&G) Vol 2 (file unavailable)
Dungeness Crab Dungeness Crab (ADF&G) Vol 2 (file unavailable)
Eulachon Eulachon (ADF&G) Vol 2 (file unavailable)
Fur Seal Fur Seal (ADF&G) Vol 1 (file unavailable)
Groundfish Groundfish (ADF&G) Vol 2 (file unavailable)
Harbor Seal Harbor Seal (ADF&G) Vol 1 (file unavailable) Harbor Seal (ADF&G) Vol 2 (file unavailable)
Harbor Seal (Dames & Moore) Vol 2 (file unavailable)
Hardshell / Softshell Clam Hardshell / Softshell Clam (ADF&G) Vol 2 (file unavailable)
Herring Herring (ADF&G) Vol 1 (file unavailable) Herring (ADF&G) Vol 2 (file unavailable)
Kelp Kelp (ADF&G) Vol 1 (file unavailable)
Polar Bear Polar Bear (ADF&G) Vol 1 (file unavailable)
Razor Clam Razor Clam (ADF&G) Vol 1 (file unavailable) Razor Clam (ADF&G) Vol 2 (file unavailable)
Seabirds Seabirds (ADF&G) Vol 1 (file unavailable) Seabirds (ADF&G) Vol 2 (file unavailable)
Seal Seal (ADF&G) Vol 1 (file unavailable) Seal (ADF&G) Vol 2 (file unavailable)
Shorebirds Shorebirds (ADF&G) Vol 2 (file unavailable)
Shrimp Shrimp (ADF&G) Vol 2 (file unavailable)
Steller Sea Lion Steller Sea Lion (ADF&G) Vol 1 (file unavailable) Steller Sea Lion (ADF&G) Vol 2 (file unavailable)
Steller Sea Lion (Dames & Moore) Vol 2 (file unavailable)
Sea Otter Sea Otter (ADF&G) Vol 1 (file unavailable) Sea Otter (ADF&G) Vol 2 (file unavailable)
Spotted Seal Spotted Seal (ADF&G) Vol 1 (file unavailable)
Tanner Crab Tanner Crab (ADF&G) Vol 2 (file unavailable)
Walrus Walrus (ADF&G) Vol 1 (file unavailable)
Waterfowl Waterfowl (ADF&G) Vol 1 (file unavailable)

Species Geodatabase Information

Area Maps

Location Map
Pribilof Islands (27) View Map (file unavailable) - K
Agattu Island (33) View Map (file unavailable) - K
Amagat Island (34) View Map (file unavailable) - K
Anchorage Flats (48) View Map (file unavailable) - K
Barren Islands (42) View Map (file unavailable) - K
Buldir Island (32) View Map (file unavailable) - K
Burroughs Bay (65) View Map (file unavailable) - K
Cape Lisburne/Cape Lewis (6) View Map (file unavailable) - K
Cape Newenham/Cape Peirce (17) View Map (file unavailable) - K
Cape Thompson (7) View Map (file unavailable) - K
Chagvan Bay (16) View Map (file unavailable) - K
Chenik Head - Silver Beach (43) View Map (file unavailable) - K
Chilkat River Flats (60) View Map (file unavailable) - K
Cinder River (23) View Map (file unavailable) - K
Clam Gulch (52) View Map (file unavailable) - K
Colville River Delta (3) View Map (file unavailable) - K
Copper River Delta (57a) View Map (file unavailable) - K
Copper River Delta (57b) View Map (file unavailable) - K
Coronation Island (67) View Map (file unavailable) - K
Delarof Islands (30) View Map (file unavailable) - K
Dry Bay (59) View Map (file unavailable) - K
Egegik Bay (21) View Map (file unavailable) - K
Forrester Island (68) View Map (file unavailable) - K
Goodnews Bay (14) View Map (file unavailable) - K
Goose Bay (49) View Map (file unavailable) - K
Hazy Islands (66) View Map (file unavailable) - K
Howe/Duck Islands/Sagavanirktok River Delta (2) View Map (file unavailable) - K
Izembek Lagoon (26A) View Map (file unavailable) - K
Izembek Lagoon (26B) View Map (file unavailable) - K
Kachemak Bay (53A) View Map (file unavailable) - K
Kachemak Bay (53B) View Map (file unavailable) - K
Kachemak Bay (53C) View Map (file unavailable) - K
Kagamil Island (29) View Map (file unavailable) - K
Kalgin Island (45) View Map (file unavailable) - K
Kasegaluk Lagoon (5) View Map (file unavailable) - K
King Island (10) View Map (file unavailable) - K
Kiska Island (31) View Map (file unavailable) - K
Kujulik Bay (38) View Map (file unavailable) - K
Kvichak Bay (20) View Map (file unavailable) - K
Little Diomede Island (9) View Map (file unavailable) - K
Marmot Island (41) View Map (file unavailable) - K
Mendenhall Wetlands (61) View Map (file unavailable) - K
Montague Island (54) View Map (file unavailable) - K
Mouth and Lower Kuskokwim River (13) View Map (file unavailable) - K
Mouth of Kenai River (51) View Map (file unavailable) - K
Mouth of Pack Creek (64) View Map (file unavailable) - K
Mouth of the Yukon River (12) View Map (file unavailable) - K
Noatak/Kobuk River Deltas - Kobuk/Selawik Lakes (8) View Map (file unavailable) - K
Nushagak Bay (19) View Map (file unavailable) - K
Palmer Hay Flats (50) View Map (file unavailable) - K
Peard Bay/Franklin Spit (4) View Map (file unavailable) - K
Perenosa Bay-seal Bay (40A) View Map (file unavailable) - K
Perenosa Bay-seal Bay (40B) View Map (file unavailable) - K
Port Heiden (24) View Map (file unavailable) - K
Port Moller/Nelson Lagoon (25A) View Map (file unavailable) - K
Port Moller/Nelson Lagoon (25B) View Map (file unavailable) - K
Redoubt Bay (44A) View Map (file unavailable) - K
Redoubt Bay (44B) View Map (file unavailable) - K
Saint Matthew Island (15) View Map (file unavailable) - K
Sandman Reefs (35) View Map (file unavailable) - K
Seal Rocks (56) View Map (file unavailable) - K
Semidi Islands (37) View Map (file unavailable) - K
Sheep Bay (55a) View Map (file unavailable) - K
Sheep Bay (55b) View Map (file unavailable) - K
Shumagin Islands (36) View Map (file unavailable) - K
Situk (58) View Map (file unavailable) - K
St. Lawrence Island (11) View Map (file unavailable) - K
St. Lazaria Island (62) View Map (file unavailable) - K
Stefansson Sound Boulder Patch (1) View Map (file unavailable) - K
Stikine River Flats (63) View Map (file unavailable) - K
Susitna Flats (47) View Map (file unavailable) - K
Trading Bay (46) View Map (file unavailable) - K
Tugidak Island (39) View Map (file unavailable) - K
Ugashik Bay (22) View Map (file unavailable) - K
Unimak Pass/Krenitzin Islands (28A) View Map (file unavailable) - K
Unimak Pass/Krenitzin Islands (28B) View Map (file unavailable) - K
Walrus Islands (18) View Map (file unavailable) - K