Visit SILT Properties: Back Details of Swan Lake In 1992 SILT contributed toward the purchase of nine acres of wetland on Swan Lake in Vernon. It is held by the Nature Trust of B.C. YOU CAN HELP SILT is a registered non-profit society and tax receipts can be issued for donations of cash or property or bequests from estates, so consider making a tax-deductible donation of money or land or including the society in your will, in order to further our common objectives of conserving habitat for the Okanagan’s wildlife. Learn more about how you can make a difference. SILT has no paid staff, so all donations go directly to fulfilling the society’s mandate of purchasing and restoring habitat for fish and wildlife. Instead it is operated by a volunteer board of directors.