Cache Info
The cache is not at the posted coordinates, instead you must use information from the physical plaque for Slater's Dock to find the final coordinates of the cache. Cache is a small Lock n Lock with room for trackables.
Count how many times the word Niagara appears anywhere on the plaque. Take this number and square it, add it to both decimal values of the components of the following meaningless coordinates; N 43° 03.350′ W 79° 01.604′. (Ex: if you were to add 100, the coordinate for north would be N 43° 03.450').
You can verify your answer using the certitude below:
You can validate your puzzle solution with
certitude.
Congrats to The_Eh_theist for FTF!
Historical Info
Slater's dock is named after Robert Slater, an English physician and also hotel owner. He had two sons: James and Jonathan. Robert settled in Willoughby Township along the banks of the Niagara River, approximately 1.5 miles south of Chippawa (where you are presumably standing). Here he built a home, storehouses and a dock. His estate was called “Willoughby Grove”. [1]
Slater's dock played a key roll in bringing tourism to Niagara Falls. In 1895 an "engineering marvel" of a railway line was opened on the American side of the gourge. This tourism attraction became nearly as effective a draw as the falls themselves, and in doing so, made the Queen Victoria Niagara Falls Park Commission in Canada desperately in need of money and visitors. They needed their own transportation system. [2]
On May 24th 1893, this new railway, featuring a single rail line, was open to the public. The rail line was very successful as The Niagara Falls Park & River Railroad Company carried approximately 354,000 people during its inaugural season. In 1894, the Niagara Falls Park & River Railway expanded to two tracks along most portions of the route to quicken the transportation. In 1895, the track was also extended 2.4 kilometres south of Chippawa to Slater’s Dock (opposite north end of Navy Island). This allowed for passenger steam ships from Buffalo and other Upper Great Lake cities to use this new railway system. [2]

References
[1] https://www.niagarafallsinfo.com/niagara-falls-history/niagara-falls-municipal-history/history-of-chippawa/
[2] https://www.niagarafallsinfo.com/niagara-falls-history/niagara-falls-tourism-history/the-great-gorge-trip/