JUNEAU -- Sealaska Corp. officials say the proposed transfer of some Tongass National Forest land to the Native corporation under a bill sponsored by Sen. Lisa Murkowski is part of a guarantee made by a 1971 law.

Sealaska executives told the Juneau Empire on Tuesday they are frustrated by the public's failure to recognize the land is an entitlement guaranteed by the 1971 Alaska Native Claims Settlement Act.

Draft revisions to the bill that have circulated among groups in Alaska over the past several weeks have sparked critics to say the changes don't go far enough to protect Tongass resources.

Sealaska plans to log most of the 80,000 acres it wants transferred and will ship logs out in the round, rather than processing them in Alaska. Conservation groups say they have concerns about it.