|
United States Burnt Timber Canyon Wilderness : Patterson, Charles G.,
|
1988
|
1
|
|
United States Cache National Forest : Grubb, Teryl G.,
|
2007
|
1
|
|
United States Caddo Lake : Matson, George Charlton,
|
1916
|
1
|
|
United States Calvert Formation : Berry, Edward Wilber,
|
1916
|
1
|
|
United States Cascades : Boetsch, John,
|
2009
|
1
|
|
United States Catawba River Valley : Mull, J. Alexander
|
2017
|
1
|
|
United States Causes 1861 1865 Civil War : Foner, Eric,
|
1995
|
1
|
|
United States Cherokee Strip : Records, Laban Samuel,
|
1995
|
1
|