https://archive.org/details/marylandgeologic03mary
[v.1] Eocene.--[v.2] Miocene. 2 pts.--[v.3] Pliocene and Pleistocene.--[v.4] Lower Cretaceous.--[v.5, pt.1] Lower Devonian, text.--[v.5, pt.2] Middle and...
maryland geological surveyfree downloadborrow
https://www.usgs.gov/media/images/vegetation-buffer-around-maryland-pond-0
A strip of primarily native vegetation restored around a small private pond in Garrett County, Maryland, to act as a runoff buffer and to provide habitat for...
geological surveyvegetationbufferaroundmaryland
https://www.usgs.gov/publications/hawk-migration-over-white-marsh-maryland
The average number of hawks observed per hour in autumn migration between 1951-1954 and 1958-1961 at White Marsh, Maryland, was compared. The counts indicated...
white marshgeological surveyhawkmigrationmaryland
https://www.usgs.gov/media/images/sinkhole-frederick-maryland
Cover-collapse sinkhole in limestone near Frederick, Maryland (September 2003). Many sinkholes occur along highways where rainwater runoff is concentrated into...
frederick marylandgeological surveysinkhole
https://www.usgs.gov/media/images/coelioxys-octodentata-m-left-side-maryland
A nest parasite, this time a male. Coelioxys octodentata is a counterpart to the more commonly found C. sayi. I associate this species with drier and perhaps...
left sidegeological surveycoelioxysmaryland