What to know about Plains
The Koo-Koo-Sint Bighorn Sheep Viewing Site near Plains has six interpretive signs. Source: visitmt.com.
For a visitor program near Plains, check which agency controls the site and what restroom and vehicle access it permits before planning facilities.
Plains at a glance
- Population
- 1,261
- Municipality
- Town
- County
- Sanders
The population is the U.S. Census Bureau’s July 1, 2025 estimate for this incorporated place. It is an estimate, not a current headcount. Census city and town estimates · Location source.
Plan temporary restrooms for the actual site
For temporary restrooms, estimate users by shift or event period and check fixture layout, accessible routes, water, wastewater and servicing access. The local context above helps frame the questions; the exact equipment depends on the project address and operating plan.

Prepare a useful Plains site brief
- Address and access. Share the exact site, placement surface, clearance, turning route and unloading point.
- Operations. State the dates, staffing or visitor pattern, daily volume and any restrictions on deliveries or servicing.
- Utilities. Document available power, potable water, wastewater arrangements and who will approve connections.
- Equipment fit. Describe the function, capacity and workflow so the team can check a proposed unit rather than relying on a category name alone.
