Name of Waterfall

Black Pool Falls

Description

Take Interstate 93 to the town of Lincoln and depart the freeway at Exit 33, signed for US Route 3, North Woodstock and North Lincoln. Turn north onto Route 3 and continue for just one-quarter of a mile, then turn left onto Hanson Farm Road. After a few hundred feet the road turns into Georgiana Falls Road (Hanson Farm Road bears right) and ends a short distance later at the parking area.
The Georgiana Falls Trail passes under Interstate 93 and follows an old roadbed for the first half of a mile, then cuts toward Harvard Brook and becomes a more defined path (the old logging road does continue, so be sure to find the right point to turn). After traversing through the woods. After about three-quarters of a mile of hiking the trail encounters the bare rock slabs at the bottom of Lower Georgiana Falls and follows blazes painted onto the rocks along the side of the falls. Black Pool and its falls are found about 150 feet upstream from the top of Lower Georgiana Falls.Black Pool Falls is one of several significant waterfalls found along Harvard Brook as it tumbles into the Pemigewasset River valley. The falls occur where the brook squeezes through a narrow gap between buttresses of granite bedrock and falls about 20 feet into a pocket carved into a huge slabs of granite bedrock, then spills another 5 feet out of the pocket into a huge swirling pool below. It could potentially be argued that this waterfall should be considered part of Lower Georgiana Falls, found about 150 feet downstream, however as there is a significant section of more or less flat stream between the two falls, and no way to view them collectively from any one location on the ground, it meets the requirements to be split into a separate entry.
The Harvard Brook basin is fairly large, covering an area of about 5.6 square miles upstream of the falls. In addition to the size of the catchment, there are two flatwater features – Bog Eddy and Bog Pond – which will retain a considerable amount of surface water throughout the year and help to ensure a good flow remains in the creek at all times. The large basin also ensures that during the spring freshet, or after heavy rainfall, the stream can and often does swell to impressive levels.The huge pool below this waterfall was historically known as Black Pool. Whether the falls at its head were specifically named or not is not known, so for the time being we're referring to it after the pool.

Other Names

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Magnitude

12.82

IWC Rating (International Waterfall Classification)

0.12

Total Height (ft)

25

Tallest Drop

20

Number of Drops

2

Average Width

10

Maximum Width

15

Average High Volume (Cubic ft per second)

25 cfs (7 months)

Average Low Volume (Cubic ft per second)

5 cfs (5 months)

Pitch

65 degrees

Run (ft)

20

Watershed or Feeder Stream

Harvard Brook