Location: US 90 and MS 607, Hancock Cty Shortly thereafter we’ll approach Highway 607. Location: US 90 and MS 607, Hancock Cty Follow 90 east to Bay St. Louis. Turn left for 607 north to I-10. Location: US 90 and MS 607, Hancock Cty Follow 607 north to I-10.  E to MS-43/MS-603, W to LA … Continue reading U.S. Route 90, MS-604 to MS-607