Today
This unique geological formation located 3/4 of a mile offshore of St. Joseph runs
parallel to the coastline for about 1 mile.
Grand Mere Rocks
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Diving
Depth is 15 to 20 feet. Divers should tow a flag to note their presence to passing boaters.
Location
GPS 42deg 00.328min / 86deg 33.753min
Decimal Degrees (WGS84)
Latitude Longitude
42.005467 -86.56255
Degrees, Minutes & Seconds
Latitude Longitude
N42 00 19 W86 33 45
GPS
Latitude Longitude
N 42 00.328 W 86 33.753
UTM
X Y
16N 536226 4650476