Blessing for Miracles

B”H 

The Talmud Tractate Berachot 54a teaches: 

“One who sees a place where miracles were performed on behalf of the Jewish people recites the blessing “Baruch … she asa Nissim le’Avoteinu ba’Makom ha’zeh – Blessed … Who performed miracles for our ancestors at this place - ברוך ... שעשה ניסים לאבותינו במקום הזה”. 

Rashi explains that such places would be the crossing point at the Red Sea or Jordan River. 

This is from the Mishna in Berachot and there is a difference between miracles performed before masses and individuals.