Extra materials:
Contains information from the project:

Rather significant tributary of the upper reaches of the River Iecava, and the name of the river (‘Holy River’) draws attention by the researchers. There are no cult sites on its banks that would be known. Maybe the river itself was deemed holy, but maybe it was a boundary river.
Only the name of the river, which allows relating the river with ancient sites, but it shall yet be clarified.
Probably, could be interesting for anglers