| 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: |