Key Biscayne N Base Reset - U.S. Historic Survey Stones and Monuments on Waymarking.com

A triangulation survey was conducted by the U.S. Coast Survey with men detailed from the U.S. Army and U.S. Navy. Alexander Dallas Bache, Superintendent of the U.S. Coast Survey, went to Key Biscayne in 1855 to take personal charge of the survey. The survey eventually included Key Biscayne, Biscayne Bay, the Florida Keys from south of Key Biscayne to the Marquesas Keys, and Florida Bay from the Keys to Cape Sable. The north base marker for Key Biscayne was reported lost in 1945 but was then discovered in 1970 as workers were clearing land for the Key Biscayne Golf Course. It was at first mistaken as a gravestone for someone named A. D. Bache. The underground granite block was found in place but the top monument was found on its side. The monument was reset over the underground mark in its original position as described below.

Taken from original data sheet -
"THE STATION MARK IS A FINELY DRESSED GRANITE MONUMENT 16 INCHES SQUARE AND 3 FEET HIGH WITH A PYRAMIDAL TOP PROJECTING ABOUT 2 FEET ABOVE THE GROUND. THE VERTICAL FACES OF THE MONUMENT ARE INSCRIBED AS FOLLOWS: NORTH FACE - BASE NO 7 N., EAST FACE - U.S. COAST SURVEY, SOUTH FACE - A.D. BACHE SUPT., AND WEST FACE - 1855. THIS MONUMENT IS RESTING ON TOP OF A GRANITE BLOCK 3 FEET SQUARE AND 2 FEET THICK WHICH IS ABOUT 1 FOOT BELOW THE GROUND AND HAS A 3/4-INCH COPPER PLUG IN IT MARKED BY A CROSS."

(above information taken from original data sheet and Joan Gill Blank's book, Key Biscayne, 1996)

The monument is located off the 10th hole along a golf cart path at the Crandon Park Golf Course on Crandon Drive, Key Biscayne. It is marked with a historical marker. The mark is an easy walk from the parking lot.

Monumentation Type: Dressed stone Monument Category: other (not included below) Monument Category (if other): U.S. Coast Survey Accessible to general public: yes Historical significance: First survey of the area for navigational purposes in 1855 Monument Website: [Web Link] County: Dade County NGS PID: AC3728 Monumentation Type (if other): Not listed Explain Non-Public access: Not listed USGS Quad: Not listed Other Coordinates: Not Listed Other Coordinates details: Not listed Approximate date of monument: Not listed

Visit Instructions:
1. A closeup photo of the monument is required.
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2. A 'distant' photo including the monument in the view is highly recommended. Include the compass direction you faced when you took the picture.

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