A slough
Panama. An isthmus is a thin body of land that connects two much larger bodies of land. In this case, Panama connects North and South America.
The Thin Green Line was created in 2007.
Walking on a Thin Line was created in 301.
The Thin Pink Line was created in 1998.
The duration of The Thin Pink Line is 1.77 hours.
The Thin Line Between was created on 2008-07-15.
The Thin White Line - novel - was created in 1977.
The Thin White Line was created on 2001-07-11.
The Thin Red Line was released on 12/23/1998.
The Production Budget for The Thin Red Line was $52,000,000.
The Thin Dead Line was created on 2001-02-13.
Thin Dark Line - band - was created in 2002.