Fishing near Iliama Lake Alaska

Does anyone know anything about the legalities of trout fishing on the
streams and rivers feeding Iliama Lake in west Alaska? Obviously, I
would need an Alaska fishing license, but can I land my Seaplane on the
lake, beach it, and walk up the rivers and fish? I am not sure, but I
think this is "Indian" land. I hear Sept is the best month. You can
reply to me via

that's
pilotbarr at yahoo dot com.

Thanks in advance.

Doug