Driving distance from Mandalay Bay to South Point 5.51 miles.
Driving distance from Mandalay Bay to M Resort Casino 8.73 miles....
That means from South Point to M it's 3.22 miles.

Now for the good stuff from the web sites of these three casinos....(Pam are you looking?)
Mandalay Bay 3950 LVBS
South Point 9777 LVBS
M Resort 12300 LVBS
Mandalay and South Point are both on the WEST side of LVB but one has an even address and one has an odd.
50 years from now chippers will be wondering what the hell was going on...or is their memory failing them.....Gertrude, I thought South Point and Mandalay were on the same side of the street. Damned if I know Luther, the addresses are right there in black and white....