Dorr, G.B. (1997). The Story of Acadia National Park. Acadia Publishing: Bar Harbor, ME.
Bates, W., E.L. Rand, & J. Herbert (1911). [Map of Mount Desert Island with detailed trails, paths, and roads, shows "The Witch Hole"] Path map of the Eastern part of Mount Desert Island, Maine. Retrieved from https://www.loc.gov/item/98687171/
Bates, W., E.L. Rand, & J. Herbert (1917). [Map of Mount Desert Island with paths and roads, shows "The Witch Hole"] Map of Mount Desert Island, Maine. Retrieved from https://www.loc.gov/item/98687172/
Bunker, W.G., & W.H. Sherman (1911). [Map of Mount Desert Island with roads, railroads, shows "The Witch Hole"] Map of Mount Desert Island, Maine. Retrieved from https://www.loc.gov/item/98687179/
Colby, George N., & J.H. Stuart (1887). [Map of Mount Desert Island showing property ownership, shows "Pond or Witch Hollow"] Map of Mount Desert Island. Retrieved from https://www.loc.gov/item/98687166/
College of the Atlantic (n.d.) [Interactive GIS map overlaying the dates of the fire in 1947 over Mount Desert Island with landmarks] Mount Desert Island Fire of 1947. Retrieved from
http://coagis.maps.arcgis.com/apps/webappviewer/index.html?id=fee3d6a4510f49a28ed36130d0800b2c
Molen van Ee, P. (n.d.). Maps of Arcadia [sic] National Park. Library of Congress. Retrieved from
http://www.loc.gov/collection/national-parks-maps/articles-and-essays/maps-of-arcadia-national-park/
Rand, E.L. (1893). [A map of Mount Desert Island compiled for Rand's Flora of Mount Desert Island, shows "The Witch Hole"] Map of Mount Desert Island, Maine. Retrieved from https://www.loc.gov/item/98687177/
U.S. Geological Survey (1922) [Topographic map of Hancock County, Mount Desert Island, featuring Lafayette National Park (renamed Acadia National Park in 1929), shows "Witch Hole Pond"] Maine. Retrieved from http://www.loc.gov/item/99446117/
U.S Geological Survey (1931) [Topographic map of Acadia National Park with Mount Desert Island and Winter Harbor and the Schoodic Peninsula, shows "Witch Hole Pond" with northern parcel protected] Topographic Map, Acadia National Park, Hancock Country, Maine. Retrieved from http://www.loc.gov/item/99446118/
U.S Geological Survey (1935) [Map of Acadia National Park featuring Mount Desert Island, shows "Witch Hole Pond"] Maine, Hancock Country, Acadia National Park and vicinity. Retrieved from http://www.loc.gov/item/99446119/
U.S Geological Survey (1942) [Topographic map of Acadia National Park featuring Mount Desert Island, shows "Witch Hole Pond" with more land protected] Topographic Map, Acadia National Park and vicinity, Hancock County, Maine. Retrieved from http://www.loc.gov/item/99446120/
U.S Geological Survey (1956) [Topographic map of Acadia National Park featuring Mount Desert Island, including Isle au Haut and Winter Harbor, shows "Witch Hole Pond" with all surrounding land protected] Topographic map, Acadia National Park and vicinity, Hancock County, Maine. Retrieved from http://www.loc.gov/item/98687186/
U.S Geological Survey (1960) [Topographic map of Acadia National Park featuring Mount Desert Island, including Isle au Haut and Winter Harbor] Topographic map, Acadia National Park and vicinity, Hancock County, Maine. Retrieved from http://www.loc.gov/item/98687187/
U.S Geological Survey (1971) [Map of Acadia National Park featuring Mount Desert Island, including Isle au Haut and Winter Harbor and the Schoodic Peninsula, shows "Witch Hole Pond" and carriage roads] Acadia National Park and vicinity, Hancock Co., Maine. Retrieved from http://www.loc.gov/item/76695084/
U.S Geological Survey (1972) [Map of Acadia National Park featuring Mount Desert Island, including Isle au Haut and Winter Harbor and the Schoodic Peninsula, shows "Witch Hole Pond" and carriage roads] Acadia National Park and vicinity, Hancock Co., Maine. Retrieved from http://www.loc.gov/item/73690158/
Maine Geological Survey (1988). [Color map classifying and identifying the bedrock geology of Mount Desert Island] Bedrock Geology of Mount Desert Island. Retrieved from http://www.coa.edu/shall/Maps_and_Links_files/GeologyMDI.pdf
National Park Service (n.d.). A Guide's Guide to Acadia National Park. Retrieved from http://www.nps.gov/acad/upload/Guide-s-Guide-3-856-KB-2.pdf
National Park Service (n.d.). Fire of 1947. Retrieved from http://www.nps.gov/acad/learn/historyculture/upload/Fireof1947.pdf
Sax, J. (1980). Mountains without Handrails. University of Michigan Press: Ann Arbor. [Found on the Acadia National Park website online, also available in print] Retrieved from http://www.nps.gov/parkhistory/online_books/sax/