Mount Assurance is a mountain in New Hampshire, United States.
 It is close to Enfield and Mascoma Lake.
 It is possible to hike up the mountain.
Crystal Lake is a 401 acre water body located in Grafton County in western New Hampshire, United States, in the town of Enfield.
 Crystal Lake is part of the Mascoma River watershed.
Mascoma Lake is a 1158 acre lake in western New Hampshire, United States.
 Most of the lake is within the town of Enfield, while a small portion is within the city of Lebanon, where it drains into the Mascoma River, a tributary of the Connecticut River.
The Mascoma River is a 31.6 mi river located in western New Hampshire in the United States.
 It is a tributary of the Connecticut River, which flows to Long Island Sound.
 The Mascoma comprises two sections which are split by Mascoma Lake in the communities of Enfield and Lebanon.
 Counting the lake would add 2.7 mi to the river's length.
Mascoma Corporation was a U.S. biofuel company founded to produce cellulosic ethanol made from wood and switchgrass.
 Headquartered in Lebanon, New Hampshire, the company was founded in 2005 by Robert Johnsen (CEO), Lee Lynd and Charles Wyman, two professors from Dartmouth College.
 The company was named after Mascoma Lake, which is near Lebanon.
 In November 2014, the yeast-related business assets including the Mascoma name were purchased by Lallemand, Inc. of Montreal, Canada.
 The R&D facility in Lebanon, NH was renamed Mascoma LLC which is now a subsidiary of Lallemand.
 The remaining business assets of the former Mascoma Corp. including the thermophilic bacteria technology, pilot plant in Rome, NY, and former headquarters in Waltham, MA were renamed Enchi Corporation.
Grafton Pond is a 319 acre water body located in Grafton County in western New Hampshire, United States, in the town of Grafton.
 The pond is part of the Mascoma River watershed, flowing to the Connecticut River.
 Outflow from the pond travels through Bicknell Brook to Crystal Lake in Enfield, then north to the Mascoma River in West Canaan.
The Knox River is a 2.5-mile-long (4.1 km) river located in western New Hampshire in the United States.
 The river is an inlet of Mascoma Lake, which drains by the Mascoma River to the Connecticut River and ultimately Long Island Sound.
Goose Pond is a 625 acre water body located in Grafton County in western New Hampshire, United States, in the towns of Canaan and Hanover.
 It is considered a great pond by the state of New Hampshire.
 The lake has 6.3 mi of shoreline, and is approximately 3 mi long by 0.5 mi wide.
 All but the northernmost end of the pond is in the town of Canaan.
 The average depth of the pond is approximately 10 ft , with the deepest part approximately 35 ft .
 The lake is part of the Mascoma River watershed, flowing to the Connecticut River.
The Enfield Shaker Museum is an outdoor history museum and historic district in Enfield, New Hampshire in the United States.
 It is dedicated to preserving and sharing the history of the Shakers, a Protestant religious denomination, who lived on the site from 1793 to 1923.
 The museum features exhibitions, artifacts, eight Shaker buildings and restored Shaker gardens.
 It is located in a valley between Mount Assurance and Mascoma Lake in Enfield.
The Enfield Village Historic District encompasses the historic 19th century village center of Enfield, New Hampshire.
 The district extends from Oak Grove Street in the west to the junction of Baltic Street and United States Route 4 in the east, and includes properties on both sides of the Mascoma River, from Route 4 to the junction of Pillsbury Street and Shaker Hill Road.
 The village had modest rural beginnings, but began to grow economically with the arrival of the railroad in the mid-19th century, and through the economic activity of the local Shaker community, located on the south side of Lake Mascoma.
 This resulted in a significant number of Greek Revival and Italianate style houses in the village.
 The economic power of the Shakers was significant in the village; despite its location outside the village, the Shakers owned or controlled the mills that were the early economic centerpiece of the village.
 Although a number of mills were built, the major economic activity was eventually consolidate in the Baltic Mills complex, the only major mill complex to survive.
 These privately owned enterprises resulted in the town's largest period of economic growth, around the turn of the 20th century, when much of the town's commercial center was developed.
 The village is also home to the town's major civic structures, including c. 1901 Whitney Hall, which houses the town offices and library, the 1852 Unitarian church, and a c. 1907 school, now Enfield Elementary School.

Question: What 1158 acre lake near Mount Assurance drains into Mascoma River?
Answer: Mascoma Lake