US LOCATION Grid

LAT                   LONG
64.9552001953125      -66.08159637451172
64.0                  -66.0
17.996400833129883    -123.99700164794922
18.0                  -124.0

Output

Count : 266,800

[
    (64.0, -66.0), (63.9, -66.0), (63.8, -66.0), ..., (18.0, -66.0) 
    (64.0, -66.1), (63.9, -66.1), (63.8, -66.1), ..., (18.0, -66.1)
    .
    .
    .
    (64.0, -124.0), (63.9, -124.0), (63.8, -124.0), ..., (18.0, -124.0)
]