|Latitude & Longitude (WGS84):||42° 48' 2'' North , 71° 18' 15'' West|
|Latitude & Longitude (decimal):||42.80056,-71.30417|
|Köppen climate type:||Dfb : Warm-summer humid continental climate|
Windham is a town, incorporated in 1742.
Mineral ListMineral list contains entries from the region specified including sub-localities
19 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
|Devonian - Silurian|
358.9 - 443.8 Ma
|Paleozoic sedimentary and volcanic rocks|
Age: Paleozoic (358.9 - 443.8 Ma)
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. 
|Silurian - Ordovician|
419.2 - 485.4 Ma
|Merrimack Group, Berwick Formation|
Age: Paleozoic (419.2 - 485.4 Ma)
Stratigraphic Name: Berwick Formation
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052.