!1b4b
!1b4b
is a Marker place
on the River Shannon - Portumna to Athlone between
Shannon - Grand Junction (Junction of River Shannon with the Grand Canal and the Ballinasloe Branch) (8 miles and 1¾ furlongs
and 1 lock
to the east) and
Portumna (Northern end of Lough Derg) (6 miles and 2¼ furlongs
to the southwest).
The nearest place in the direction of Shannon - Grand Junction is Victoria Lock;
2 miles and 1 furlong
away.
The nearest place in the direction of Portumna is Portumna Lift Bridge;
5 miles and 2¾ furlongs
away.
Mooring here is unrated.
| Marker place "!1b4g" | 6 furlongs | |
| Marker place "!1b4f" | 5 furlongs | |
| Marker place "!1b4e" | 4 furlongs | |
| Marker place "!1b4d" | 2½ furlongs | |
| Marker place "!1b4c" | 1¼ furlongs | |
| Marker place "!1b4b" | ||
| Marker place "!1b4a" | ¾ furlongs | |
| Marker place "!1b49" | 1½ furlongs | |
| Marker place "!1b08" | 2¾ furlongs | |
| Marker place "!1b07" | 3½ furlongs | |
| Marker place "!1b06" | 4 furlongs | |