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Flagstaff Lake (Maine) facts for kids

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Flagstaff
Flagstaff Lake DSCN0421.JPG
Flagstaff Lake seen from Mount Bigelow
Location of Flagstaff Lake in Maine, USA.
Location of Flagstaff Lake in Maine, USA.
Flagstaff
Location in Maine
Location of Flagstaff Lake in Maine, USA.
Location of Flagstaff Lake in Maine, USA.
Flagstaff
Location in the United States
Location Northwest Somerset, Somerset County, and Eustis, Franklin County, Maine, US
Coordinates 45°11′38.9″N 70°18′52.4″W / 45.194139°N 70.314556°W / 45.194139; -70.314556
Type eutrophic, reservoir, Man Made Lake, Its a flooded village, once known as Flagstaff Village.
Primary inflows North Branch Dead River; South Branch Dead River
Primary outflows Dead River
Catchment area 516 square miles (1,340 km2)
Basin countries United States
Surface area 20,300 acres (8,200 ha)
Average depth 18 feet (5.5 m)
Max. depth 48 feet (15 m)
Water volume 261,365 acre⋅ft (322,389,000 m3)
Residence time 6 months
Shore length1 147.2 miles (236.9 km)
Surface elevation 1,146 feet (349 m)
1 Shore length is not a well-defined measure.

Flagstaff Lake is a large lake in Maine, United States. You can find it in Somerset County and Franklin County, Maine. It's a special lake because it was created by people! Long ago, it was a smaller natural lake.

Two rivers, the North Branch Dead River and South Branch Dead River, flow into Flagstaff Lake. They then join to form the Dead River. This river eventually flows into the Kennebec River.

Flagstaff Lake
Flagstaff Lake in September 2018

The lake covers a huge area, about 20,300 acres. That's like more than 15,000 football fields! It's not a very deep lake, usually around 18 feet. But its deepest spot is about 48 feet.

Even though it's a big lake, some parts can be quite shallow and marshy. If you want to explore these areas, a canoe or kayak is best. Sometimes, you might even need to wade through the water!

People love to visit Flagstaff Lake for outdoor fun. The beautiful Bigelow Mountain Range looks over the lake from its southern side. This makes it a great spot for hiking, fishing, and enjoying nature. You can catch fish like landlocked salmon and brook trout here.

How Flagstaff Lake Was Made

Flagstaff Lake became much bigger in 1950. This happened when a large structure called the Long Falls Dam was built. The dam was built across the Dead River. This turned the natural lake into a reservoir. A reservoir is like a giant storage tank for water.

Why the Dam Was Built

The main reason for building the dam was to help make hydropower electricity. Hydropower uses the force of moving water to create power. The dam helps control how much water flows from the Dead River into the Kennebec River. This steady flow of water is then used by other power plants downstream.

In the past, rivers were also used to transport logs. This was called a "river drive." Logs were floated down the river to mills. The dam helped control the water flow for these log drives too. But today, trucks are used instead of river drives.

A Big Debate

Building the dam was a big deal and caused a lot of discussion. This started way back in 1923. Two important people, Walter Wyman, who led a power company, and Percival Proctor Baxter, a state leader, had different ideas.

When the dam was finished, it flooded several small towns and villages. These places, like Flagstaff, Bigelow, Dead River, and Carrying Place, are now underwater. It's like a hidden village beneath the lake!

About the Dam

The Long Falls Dam is 45 feet tall and over 1,300 feet long. It's made of concrete and earth. It has special gates that can open and close to control the water. Even though the dam helps make electricity, it doesn't make power itself. Instead, it helps eight other power projects downstream on the Kennebec River. It also helps control floods.

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