USGS Current Conditions for Maine:
http://waterdata.usgs.gov/me/nwis/current/?type=flowThis is a great resource for consistently up-to-date data for water levels in the State. Good for looking before booking!
The Maine.gov Maps Page:
http://www.maine.gov/portal/facts_history/maps.htmlThis page gives many various maps of Maine depicting public campsites, recreational trails, national parks, geological surveys and much, much more.
The Library of Congress: Online Historical Map Collection: Maine
http://lcweb2.loc.gov/ammem/gmdhtml/gmdPlaces19.htmlThe link above will bring you to a specific page within the site that has a list of Maine map links that are most useful for our topic. The maps have interactive zoom function and are beautifully displayed on screen.
NOAA Paleoclimatology Tree-Ring Data:
http://www.ncdc.noaa.gov/paleo/treering.htmlThis a really fun collection of data for the science lovers and naturalist buffs out there. Tons of useful links are listed below the tree-ring data on the page this links to. Have fun with this one!