Portland Shamrock 2025-02-28 Roadnow click anywhere on map to find more poi nearby Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Portland Shamrock Bethany, OK 7.13 mi Wheatland, OK 13.25 mi Edmond, OK 16.55 miInterstate highway exits close to Portland Shamrock Exit 122, i44 1.47 mi Exit 121b a, i44 2.04 mi Exit 123a, i44 2.17 miInterstate highways close to Portland Shamrock i44 map 1.47 mi i40 map 3.22 mi i35 map 7.04 miState roads close to Portland Shamrock OK 66 map 2.32 mi US 270 OK map 3.44 mi US 277 OK map 23.00 mi