1) Scottish salt marsh 
[river] The Merse is an Italian river, a right tributary of the Ombrone. It runs through Tuscany for a distance of about 70 km and is the river of the Val di Merse. Its sources are near Poggio Croce di Prata and Poggio di Montieri in the range of hills known as the Colline Metallifere. From here it takes a north-easterly direction for the f...