Water and irrigation districts operate and maintain hundreds or thousands of resources across large areas (upward of 100,000 acres). Managers, staff and board members need to communicate effectively about maintenance and construction of facilities. Accurate maps for the board room and the ditch tender´s truck support effective communication. Provost & Pritchard has produced district facilities maps for 10 valley districts. We create both large format wall maps and multi-page mapbooks. Some of our clients have had Provost & Pritchard conduct GPS surveys of their facilities and others have had their existing facilities drawings corrected to aerial imagery. For detailed facility master planning purposes we also offer survey-grade GPS data collection that results in elevation accuracy of about one-tenth of a foot.