Lower Hop Brook NEON - United States of America

DEIMS.iD

https://deims.org/76912148-a3c7-4638-baa3-d251eb81961c

This record was created automatically using information from the:
Basic Information
Site Name
Lower Hop Brook NEON
Short name
HOPB
Country
United States of America
Web Address
https://www.neonscience.org/field-sites/hopb
Site Manager
Kristin Godfrey
Site Description
Lower Hop Brook (HOPB) is an aquatic site located west of Harvard Forest in Franklin County, Massachusetts and is hosted by the Massachusetts Department of Conservation and Recreation Division of Water Supply Protection. The wadeable 3rd-4th order stream flows over a 12.8 km2 (3160 acre) watershed into the Quabbin Reservoir. The site's dominant land cover is evergreen and mixed forest. HOPB is located in the Northeast Domain (D01), which encompasses the New England and northern Eastern Seaboard states along with the northern end of the Appalachian range. D01 includes one other terrestrial site and one aquatic site. HOPB is located near the Harvard Forest (HARV) terrestrial site.
Relationships to other sites
This site groups with:
Last modified
2025-09-17 14:09:19

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General Characteristics and Status
Site Status
Operational
Year Established
2016
Observed properties
Affiliation and Network Specific Information
Affiliation
GERI✔This site is a verified "GERI" member.
NEON✔ (HOPB)This site is a verified "NEON" member.
Photos
HOPB Fish Sampling
HOPB Fish Sampling
HOPB electrofishing
HOPB electrofishing
Geographic
View in site map
Centroid/Representative Coordinates

Latitude: 42.47179 Longitude: -72.32963

Size
ca. 1280.00ha
Elevation (average)
203.00msl
Elevation (min)
160.00msl
Elevation (max)
415.00msl
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Site information [.json]

Centroid/representative coordinates [.shp] [.kml] [.geojson]
GEO-BON Biome
Fresh water rivers
Terrestrial
Biome
Fresh Water Rivers
Ecosystem Type
Fresh Water Rivers
Air Temperature: Average Annual
7.90°C
Precipitation Annual
1368.00mm
Geology
The Quabbin Reservoir is generally characterized by metamorphic rocks with intrusion of schist and gneiss. The Lower Hop Brook's geology is characterized by the Connecticut Valley Belt schist and the stream consists of a mixture of substrates ranging from sand and cobbles to boulders.
Vegetation
Stream riparian vegetation consists primarily of mixed deciduous hardwood forest with primarily beech, oak, maple trees, and interspersed pines towards the outlet. Shrubs make up less than 20% of the understory.
Soils
Lower Hop Brook substrate is primarily composed of sand/gravel, cobbles, and boulders.
Hydrology
The Lower Hop Brook is a 3rd-4th order stream located in the Quabbin Watershed, which is home to one of the largest freshwater reservoirs in the United States. The clear-water stream has a moderate grade with increasing grading towards the outlet. Minimal beaver activity (dams, ponds) occurs in upper portions of the reach. Large debris dams characterize the reach downstream. This area tends to have high spring flows due to spring snowmelt and lower flows during the summer and fall. The Hop Brook accounts for approximately 2% of annual flow into the Quabbin Reservoir.
Site Type
Stationary land-based site
Design of Experimentation
partly experimentation
Scale of Experimentation
plot scale
Design of Observation
mainly observation
Scale of Observation
entire catchment
Permanent Power Supply
Yes
Accessible All Year
Yes
All parts of Site Accessible
Yes
Permanent Operation
Yes