The Burlington Master Naturalist Program: https://enjoyburlington.com/master-naturalist-btv-program/
Branch Out Burlington: https://branchoutburlington.org/
Peter Adams Natural History Notes:
Friends of the Pleistocene: https://fopnews.wordpress.com/2010/08/18/1077/
Newspaper Archives Free to Vermonters: https://www.sec.state.vt.us/media/913953/vsara_newspaperscom_instructionsforvtresidents.pdf
Lake Champlain Basin Project: http://www.lcbp.org/about-the-basin/history-timeline/
University of Waterloo: https://uwaterloo.ca/wat-on-earth/news/champlain-sea-here-yesterday-gone-tomorrow
Echo Center
UVM Natural History Museum: https://www.uvm.edu/vtnaturalhistory
Zadock Thompson: https://vermonthistory.org/journal/misc/ZadockThompsonVermont.pdf
Audubon Vermont: https://vt.audubon.org/
Louise Mullen’s Birdsville Bulletins
The Library of Congress: http://www.loc.gov/rr/geogmap/sanborn/
Burlington Geographic: http://www.uvm.edu/place/burlingtongeographic/stories/ravine.php
Elevation Finder: https://www.freemaptools.com/elevation-finder.htm
UVM Archives: https://cdi.uvm.edu/
McAllister Collection at UVM: https://cdi.uvm.edu/collection/mcallister
Google Books Burlington Annual Reports: https://www.google.com/search?tbm=bks&q=Burlington+City+Reports
Beetle Identification: https://www.insectidentification.org/insects-by-type-and-region.asp?thisState=Vermont&thisType=Beetle