Mystic Dam

An account from the chapter on Arlington town, The inset identifies its exact source book and publication year.

The chapter on Arlington Town in History of the Town of Arlington, Massachusetts, published 1880 names Winchester. This is what it says, exactly as the scans read.

Regional context, not property-specific evidence. The federal wildfire occurrence database lists 75 fires within 5 miles of Mystic Dam between 2015 and 2020, burning about 99 acres in total. None started naturally. 28 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.

The most recent of them, most recent first, with the day each was reported and the service that recorded it.

Every fire recorded in Middlesex County

Regional context, not property-specific evidence. Museums hold 1,848 specimens collected within 10 miles of Mystic Dam between 1898 and 1975: 798 Animalia, 575 Plantae, 407 Fungi, 30 Protozoa, 17 Bacteria, 12 Chromista, 9 Unrecorded. 12 distinct Species records are shown. Collected by ?, A B Seymour, A B. Proper and others. Each is a physical object with a catalogue number, and each entry opens the museum's record. This is what was collected and kept, not a survey of what lives here - nothing can be concluded from a species being absent.

Image	Species	Year	Collected by	Where, as recorded
	Trientalis borealis Raf.	1900	A. P. Chute
	Aglaospora profusa (Fr.) De Not.	1898	Collector unspecified
	Bulbostylis capillaris var. crebra Fernald	1898	C. H. Knowlton	Boston.
	Cantharellus cinnabarinus (Schwein.) Schwein.	1898	not recorded	Newton.
	Cantharellus infundibuliformis (Scop.) Fr.	1898	not recorded	Melrose.
	Cladonia coccifera (L.) Willd.	1898	Francis P Daniels	Cambridge
	Cladonia rangiferina (L.) Weber	1898	Francis P Daniels	Arlington Heights
	Cordyceps capitata (Holmsk.) Link	1898	Conant, [?] F.	Middlesex Fells
	Crataegus coccinea L.	1898	None	Harvard University Arboretum
	Ctenidium malacodes Mitt.	1898	not recorded
	Acer carpinifolium Siebold & Zucc.	1900	A. K. Harrison	Harvard Botanic Garden, Cambridge.
	Acer palmatum var. dissectum (Thunb.) Miq.	1900	A. K. Harrison	Harvard Botanic Garden, Cambridge.

All 1,848 specimens within 10 miles, at the Global Biodiversity Information Facility.

Regional context, not property-specific evidence. The federal mineral resources record lists 15 workings within 5 miles of Mystic Dam: 7 past producers, 6 plants, 2 producers. 8 still produce. What was taken out: Sand and Gravel, Construction, Iron, Lead, Peat. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Middlesex County

Regional context, not property-specific evidence. The National Weather Service names Winchester, the town this property stands in, in 5 storm reports between 1995 and 1999: 4 flash flood, 1 thunderstorm wind. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Middlesex County

When this property was proposed for the National Register, someone wrote the case for it: what the building is, and why it matters. That document is a federal record in the public domain. It is reproduced in full on its own page, word for word and never summarised. The text was read off the scanned case file by machine, so the occasional stray character is the recogniser's and the 1970s typewriter's.

The whole case file for this property - 1,183 words, 8 pages, reproduced complete.

Quoted from the National Register nomination for reference 89002282, 8 pages, held by the National Archives in Record Group 79. See the catalogue record.

Other National Register properties close enough to walk or drive between, ordered by distance from this one. Both positions come from the same geocoding pass that matched these properties to their map sheets.