Oregon Trail Maps

The following maps show the path of the Oregon Trail through Ladd Marsh.  The first map is based on two historic surveys of the southern Grande Ronde Valley wetlands created in 1864 and 1881.   The additional maps show modern features with aerial photographs, showing the historical routes of the Oregon Trail.

To download a full-sized copy of this map: LMWA HistoryMap_March 2015

LMWA HistoryMap_March 2015

Oregon Trail Through Ladd Marsh

Oregon Trail Through Ladd Marsh Aerial