By Cosmos Mariner, July 27, 2007
	1. Songo Lock Marker

1791 - Canal Considered
1821 – First Maine Legislature granted a charter to Cumberland and Oxford Canal Corp. to dig a canal from Waterford to Fore River. Survey made and cost estimated at $130,804
1823 – Second Legislature gave a grant of land and authorized a $50,000 lottery (which netted $37,000).
1825 – The Canal Bank of Portland was chartered with a capital of $300,000 with a provision that 25% of its stock be invested in the Canal Company.
1828 – Work started.
1830 – Work complete, total cost

	By Cosmos Mariner, July 27, 2007
	2. Civil Engineering Landmark
	A Maine Historic Civil Engineering Landmark, originally constructed in 1830. The last operational navigation lock in Maine, and the Cumberland and Oxford Canal System.

$206,000. Canal Bank took mortgage for balance.
1857 – Canal Co. sold for $40,000.
1872 – Last boat had passed through canal. From “Sebago Lake Land” H.G. Jones
 
Location. 43° 55.928′ N, 70° 34.616′ W. Marker is near Naples, Maine, in Cumberland County. Marker is on Sebago Lake State Park Road 1.9 miles east of U.S. 302, on the left when traveling north. Click for map. Marker is in this post office area: Naples ME 04055, United States of America.
 
Regarding Songo Lock. Songo Lock connects Sebago Lake to Brandy Pond and Long Lake. This lock is the only one remaining from the locks built in the 1830s which linked Long Lake to the Atlantic Ocean near Portland via the Cumberland and Oxford Canal.
 
Also see . . .
1. Songo Lock in Naples, ca. 1890. Photograph of Songo Lock from the 1890s. (Submitted on September 13, 2012, by Cosmos Mariner of Cape Canaveral, Florida.) 

2. Songo Lock, Naples. 1912 photograph of the "Charles L. Goodridge" steamboat in Songo Lock. (Submitted on September 13, 2012, by Cosmos Mariner of Cape Canaveral, Florida.)