The La Conner School Board on Monday signed a proposed agreement with the Swinomish Indian Tribal Community outlining the details of the $400,000 funding contribution the tribe promised last December.

For months, school and tribal officials have been negotiating the terms of the gift. School Board President Rick Thompson said he was hopeful this final deal, brokered between school and tribal attorneys, would be approved by the Swinomish Indian Senate, which is expected to consider it next month.

Swinomish Chairman Brian Cladoosby, in San Diego on Tuesday for the National Congress of America...