| override_editor, Encyclopædia Britannica, Ninth Edition…
“ Its total length to the town of Perth is about 95 miles, and it drains a total area of about 2400 square miles, while its estuary extends for about other 25 miles. The navigation of the estuary is somewhat impeded by sandbanks. The only important port is Dundee, but vessels of 100 tons can pass up to Perth, the river being tidal to 2 miles above it. The salmon fisheries on the river and its estuary are among the most valuable in Scotland. ”
