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National Trails System » Feasibility Study Revision for Additional Routes to the Oregon, California, Mormon Pioneer, and Pony Express National Historic Trails
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![Notice of the termination of the EA process for the Four Trails Study](images/icons/folder.png)
Notice of the termination of the EA process for the Four Trails Study
![Trail Study News March 2011](images/icons/folder.png)
Trail Study News March 2011
![Excerpt from the Omnibus Public Lands Management Act of 2009 (PL 111-11)](images/icons/folder.png)
Excerpt from the Omnibus Public Lands Management Act of 2009 (PL 111-11)
![Feasibility Study Update - September 2012](images/icons/folder.png)
Feasibility Study Update - September 2012
![Map of Existing Designated National Historic Trails (NHTs) - California, Oregon, Mormon Pioneer, and Pony Express NHTs](images/icons/folder.png)
Map of Existing Designated National Historic Trails (NHTs) - California, Oregon, Mormon Pioneer, and Pony Express NHTs
![DRAFT maps of the study routes-May 2015](images/icons/folder.png)
DRAFT maps of the study routes-May 2015
![Scoping Meeting Presentation](images/icons/folder.png)
Scoping Meeting Presentation
![Scoping Report](images/icons/folder.png)
Scoping Report
![Final Feasibility Study Revision for Additional Routes to the Oregon, California, Mormon Pioneer, and Pony Express National Historic Trails & Transmittal Letters to Congress](images/icons/folder.png)
Final Feasibility Study Revision for Additional Routes to the Oregon, California, Mormon Pioneer, and Pony Express National Historic Trails & Transmittal Letters to Congress
![ESRI shapefile or feature service for the Feasibility Study Revision for Additional Routes to the Oregon, California, Mormon Pioneer, and Pony Express National Historic Trails](images/icons/folder.png)
ESRI shapefile or feature service for the Feasibility Study Revision for Additional Routes to the Oregon, California, Mormon Pioneer, and Pony Express National Historic Trails