Putting Water Where the Grass Is: Mobile Water Infrastructure to Improve Cattle & Sheep Grazing Distribution in the Northern Plains

Commodities

Practices

Project Title: Putting Water Where the Grass Is: Mobile Water Infrastructure to Improve Cattle & Sheep Grazing Distribution in the Northern Plains

Livestock in the Northern Plains consistently overgraze areas near fixed water sources while leaving large portions of pasture underutilized. This uneven grazing reduces forage efficiency, degrades soil and plant communities, and limits producers' ability to implement effective rotational or patch grazing. Ranchers repeatedly identify water placement, not fencing, as the primary barrier to improving grazing distribution and overall pasture productivity. This project evaluates the use of the Rangeland Caterpillar-Low Cost Producer version, a mobile watering system equipped with an independently powered atmospheric water generator (AWG) capable of producing 5-7 gallons of water per day under typical summer conditions. By moving water ahead of grazing, the system allows livestock behavior, not labor or infrastructure, to drive distribution across the landscape. The Caterpillar's dual-tank, towable design enables flexible placement in underutilized areas without reliance on pipelines or frequent hauling. The project will be implemented on partner ranches and SDSU research sites. Ranchers will integrate the system into real-world grazing operations, selecting water locations based on forage availability, pasture utilization, and management goals. Livestock movement and grazing patterns will be quantified using CERES GPS ear tags to measure home-range distance from water (e.g., 0.25-1.5 miles), travel behavior, and pasture use. Forage utilization, ground cover, and rangeland condition will be monitored across ecological sites, along with total herd water intake to interpret behavioral responses. Extension activities will include field days, pasture tours, and hands-on demonstrations featuring real-time grazing distribution maps and practical management discussions. These events will engage producers directly and support adoption of mobile water strategies. Expected outcomes include improved grazing distribution, increased utilization of underused forage, reduced pressure on overgrazed areas, and enhanced pasture condition. Producers will gain a practical, scalable tool to expand usable acres, reduce labor associated with water management, and improve grazing efficiency. This project delivers both measurable data and actionable strategies that can be readily adopted by ranchers across the North Central region.

Objective 1: Implement the Rangeland Caterpillar on partner ranches to improve livestock distribution.

Objective 2: Measure cattle and sheep home-range distance from water, travel patterns, and forage utilization using CERES tags and ecological site sampling.

Objective 3: Monitor total herd water intake, pasture recovery, and changes in underutilized areas.

Objective 4 (Extension): Deliver producer-focused education through field days, pasture tours, grazing-distribution maps, hands-on demonstrations, and seasonal outreach events.

Outcomes: Producers adopt mobile water placement strategies that increase usable acres, reduce overused patches, and improve grazing efficiency across rangelands.