Which preposition to use with morro

at Occurrences 1%

"The positions of the United States ships were established by known bearings and distances from the Morro at No. 1, with the exception of the New York, whose position is plotted by the revolutions of its engines during a run of forty-five minutes cast from its position, southeast half south of the Morro, 6,000 yards.

to Occurrences 1%

Spain's haughty ensign trailed in the dust; Old Glory, typifying liberty and the pursuit of happiness untrammelled floated over the official buildings from Fort Morro to the Plaza de Armasthe investment of Santiago de Cuba was accomplished.

Which preposition to use with  morro