| Business | Phone |
| Arkansas State Park Po Box 98, Washington 71862 | (870) 983-2227 |
| Collection Management Facility Po Box 98, Washington 71862 | (870) 983-2284 |
| Old Washington Historic Park Highway 195 & Highway 278amp;, Washington 71862 | (870) 983-2684 |
| Old Washington Historical 1914 School House, Washington 71862 | (870) 983-2155 |
| Park Historian Po Box 98, Washington 71862 | (870) 983-2312 |
| Parks & Tourism Dept Reg 4 305 Sw Carroll St, Washington 71862 | (870) 983-2122 |