| Author | 
					Title | 
					Edition | 
					Format | 
					Price | 
					Puborg | 
				
		    
				
					| Redwood NP | 
					Redwood National & State Parks Lassen Volcanic NP Whiskeytown - Shasta -Trinity National Recreation Area Museu | 
					2008 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Reik, Henry Ottridge, 1868- | 
					A Tour of America's National Parks  [maps on lining-papers] | 
					1920 NY | 
					PDF Kindle EPub | 
					Free | 
					Libr Congress | 
				
		    
				
					| Reik, Henry Ottridge, 1868- | 
					A Tour of America's National Parks  [West (U.S.) -- desc. & travel] | 
					1920c NY | 
					PDF Kindle EPub | 
					Free | 
					UCalifornia | 
				
		    
				
					| Rensch, H. E. | 
					Chronology for Tumacacori National Monument [Field Div Educ. Publ] | 
					1934Berkl. | 
					Html | 
					Free | 
					NatPkServ | 
				
		    
				
					| Riddick, Carol Cutler | 
					Evaluative Research In Recreation, Park, And Sport Settings | 
					1999 | 
					NetLibr (Ebsco) | 
					44.95 | 
					SagamorePub | 
				
		    
				
					| Riley, Edward M & Chas. E Hatch Jr (eds. | 
					James Towne In the Words of Contempories [Source Bk Ser. 5] | 
					1946 Wash. | 
					Html | 
					Free | 
					NatPkServ | 
				
		    
				
					| Ringland, Arthur Cuming, et. al. | 
					Conserving human & natural resources: oral history transcript / and related material, 1966-1970 | 
					1966-Berkly | 
					PDF Kindle EPub | 
					Free | 
					UCalifornia | 
				
		    
				
					| Rio Grande WSR | 
					An Administrative History of the Rio Grande Wild and Scenic River ... (Raymond Skiles, et. al.) | 
					1988 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Roberts, Paul Harry, et. al. | 
					Forest Service issues & legislation to 1951; oral history transcript / 1965-1974 | 
					1965- | 
					PDF Kindle EPub | 
					Free | 
					UCalifornia | 
				
		    
				
					| Rock Creek NP | 
					Administrative History | 
					1985 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Rock Creek NP | 
					Rock Creek Park Historic Resource Study | 
					1990 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Rock Creek NP | 
					Rock Creek Park: A report by the Olmsted Brothers | 
					1918 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Russell, Hilary | 
					Underground Railroad Parks: A Shared History [illus.] | 
					 | 
					PDF-Adobe | 
					Free | 
					NatPkServ | 
				
		    
				
					| Sachse, Nancy Davis | 
					Born Among the Hills: The Sleeping Giant Story  [Connecticut; Sleeping Giant Park Assn.] | 
					n.d. | 
					Html | 
					Free | 
					QuinnipiacU | 
				
		    
				
					| Sagamore Hill NHS | 
					Sagamore Hill and Roosevelt Family HRS | 
					 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sagamore Hill NHS | 
					Sagamore Hill: Home of Theodore Roosevelt - Historic Structure Report | 
					 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sagamore Hill NHS | 
					The New Barn: Historic Structure Report, Sagamore Hill National Historic Site | 
					2005 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sagamore Hill NHS | 
					Theodore Roosevelt and His Sagamore Hill Home Historic Resource Study, Sagamore Hill National Historic Site | 
					2007 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saguaro NP | 
					Cattle, Copper and Cactus: The History of Saguaro National Monument | 
					1987 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saguaro NP | 
					Cattle, Copper and Cactus: The History of Saguaro National Monument | 
					1987 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saguaro NP | 
					Ecology of the Saguaro: II Reproduction, Germination, Establishment, Growth, and Survival of the Young Plan | 
					1977 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saguaro NP | 
					Saguaro National Monument (Natural History Handbook Series No. 4a; Natt N. Dodge) | 
					1957 Wash. | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saguaro NP | 
					Saguaro National Monument (Rev.; Natural History Handbook Series No. 4b; Napier Shelton) | 
					1972 Wash. | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saguaro NP | 
					Saguaro National Monument (rev.; Natural History Handbook; Shelton) | 
					1972x | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sagus Iron Works NHP | 
					Cultural Landscape Report for Saugus Iron Works National Historic Site | 
					2003 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sagus Iron Works NHP | 
					Saugus Iron Works Ironmaster's House Report | 
					1977 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saint Croix NSR | 
					Scenic River Study of the Lower Saint Croix River | 
					1973 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saint Croix NSR | 
					Time and the River: A History of the Saint Croix National Scenic Riverway | 
					 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saint Gaudens NHS | 
					"Aspet" Saint-Gaudens National Historic Site Historic Structure Report | 
					1969 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saint Gaudens NHS | 
					Aspect and Little Studio Historic Structures Report, Update | 
					2007 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saint Gaudens NHS | 
					Augustus Saint-Gaudens: The Man and his Art | 
					1967 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saint Gaudens NHS | 
					Hedge Management Plan for Saint_Gaudens National Historic Site | 
					2008 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Salem Maritime NHS | 
					Archeological Investigations at the Narbonne House | 
					1982 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Salem Maritime NHS | 
					Salem Maritime NHS Administrative History | 
					 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Salem Maritime NHS | 
					Special Report: Salem Martitime National Historic Site, July 13 and. 14, 1940 | 
					1940 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Salinas Pueblo Missions NM | 
					"In the Midst of a Loneliness": The Architectural History of the Salinas Missions | 
					1988 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Salinas Pueblo Missions NM | 
					Excavations in a 17th-Century Jumano Pueblo: Grand Quivira | 
					1961 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Salinas Pueblo Missions NM | 
					History of Quarai | 
					1939 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Salinas Pueblo Missions NM | 
					The 1939-1940 Excavation Project at Quarai Pueblo and Mission Buildings, Salinas Pueblo Missions National Monu | 
					1990 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Antonio Missions NM | 
					Indian Groups Associated with Spanish Missions of the San Antonio Missions National Historical Park | 
					1940 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Antonio Missions NM | 
					San Antionio Missions National Historic Park: A Report on a Study of Its Boundaries | 
					1990 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Francisco Maritime NHT | 
					Tugboat Hercules Historic Structure Report | 
					1990 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan Island NHP | 
					A Study of the Probable Original Layouts, Uses, & Appearance of the Officer's Quarters (HS-11) at American Cam | 
					2005 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan Island NHP | 
					Administrative History | 
					 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan Island NHP | 
					An Early Lithic Site in the San Juan Islands: Its Description and Research Implications | 
					2002 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan Island NHP | 
					Outposts of Empire: The Royal Marines and the Joint Occupation of San Juan Island | 
					2000 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan Island NHP | 
					San Juan Island National Historical Park: A Master Plan | 
					1968 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan Island NHP | 
					The Salmon Bank: An Ethnohistoric Compilation | 
					2003 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan NHS | 
					Drawbridge and Sally Port of El Morro Castle San Juan NHS Historic Structure Report | 
					1959 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan NHS | 
					El Castillo De San Cristobal Historic Furnishings Report | 
					1993 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan NHS | 
					The Eighteenth Century Caribbean & The British Attack on Puerto Rico | 
					1797 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan NHS | 
					The Fortifications of San Juan National Historic Site Historic Structure Report, v 1 | 
					1991 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan NHS | 
					The Fortifications of San Juan National Historic Site Historic Structure Report, v 2 | 
					1991 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan NHS | 
					The Fortifications of San Juan National Historic Site Historic Structure Report, v 3 | 
					1991 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| San Juan NHS | 
					Third International Symposium of Historic Preservation on Puerto Rico and the Caribbean | 
					1994 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sand Creek Massacre NHS | 
					Ordinance Artifacts at the Sand Creek Massacre Site | 
					 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Santa Fe NHT | 
					Commerciantes, Arrieros, Y Peones: The Hispanos and the Santa Fe Trail (Merchants, Muleteers, and Peons) | 
					 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saratoga NHP | 
					Cultural Landscape Report and Archeological Sensitivy Assessment for Victory Woods, Saratoga National Historic | 
					2007 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Saratoga NHP | 
					Historic Handbook #4: Saratoga National Historical Park (Charles W. Snell & Francis F. Wilshin) | 
					1950/59rv | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Schneider, Bill | 
					Hiking Carlsbad Caverns And Guadalupe Mountains National Parks | 
					1996 | 
					NetLibr (Ebsco) | 
					12.95 | 
					FalconPrPub | 
				
		    
				
					| Scotts Bluff NM | 
					A History of Scotts Bluff National Monument | 
					1962 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Scotts Bluff NM | 
					Administrative History | 
					1983 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Scotts Bluff NM | 
					An Eye for History: The Paintings of William Henry Jackson | 
					1997 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Scotts Bluff NM | 
					Historic Handbook #28: Scotts Bluff National Monument, Nebraska  (Merrill J. Mattes) | 
					1958/61rv | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Scotts Bluff NM | 
					Outline of the Geology & Paleontology of Scotts Bluff National Monument | 
					1934 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Scotts Bluff NM | 
					The History of Scotts Bluff, Nebraska | 
					 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Challenge of the Big Trees | 
					 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Crystal Cave in Sequoia National Park | 
					1946 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Giant Sequoia Ecology: Fire and Reproduction | 
					1980 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Historical ... Assessment of Civilian Conservation Corps Rock Work along Generals Hwy From Ash Mountain to Gia | 
					1988 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Indian Tribes of Sequoia National Park Region | 
					 | 
					Html | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Invisible Men: Buffalo Soldiers of the Sierra Nevada | 
					 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Sequoia and Kings Canyon National Parks Museum Management Plan | 
					2008 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Sequoia-Kings Canyon National Parks: History of the Parks, Evaluation of Historic Resources, Determination of | 
					1975 | 
					PDF | 
					Free | 
					NatPkServ: | 
				
		    
				
					| Sequois NP (& Kings Canyon NP) | 
					Special Report on a Wildlife Study of the High Sierra in the Sequoia and Yosemite National Parks and Adjacent | 
					1936 | 
					PDF | 
					Free | 
					NatPkServ: |