The Advocates Google Map 225 W Main St, Lewistown, MT 59457 The Advocates info Address: 225 W Main St, Lewistown, MT 59457 Website: montanaadvocates.com Telephone: (406) 272-6986 Zipcode: 59032 City: Grass Range State: Montana Work Time: Sunday Closed,Monday 8:30AM–5PM,Tuesday 8:30AM–5PM,Wednesday 8:30AM–5PM,Thursday 8:30AM–5PM,Friday 8:30AM–5PM,Saturday Closed