Wet forests at W part of Ķemeri Raised Bog
Probably already at the end of the 19th century the first drainage was established in the forests on the southwest margin of Ķemeri Raised Bog. The following vast drainage in 1964 and the reconstruction of drainage system in 1974 significantly altered the hydrological regime of these formerly wet forests.

Drainage ditch in forest. Photo: Viesturs Lārmanis.
Forests along the Western margin of Ķemeri Raised Bog in maps

Forests along the Western margin of Ķemeri Raised Bog in 1911. The first forest drainage system already is established.
Map: Main headquarters gaodesic-topographic division, published in 1928 according to the situation in 1911.

Forests along the Western margin of Ķemeri Raised Bog in 2006. The forests are criss-crossed by drainage ditches.
Map: Latvian Geospatial Information Agency.