Yuma Proving Ground (YPG) is a United States Army installation located in southwestern Arizona, near the city of Yuma. The region is characterized by a hot desert climate with long, extremely hot summers and mild winters. YPG experiences scorching temperatures in the summer, often exceeding 100°F (38°C), while winter temperatures range from 60-70°F (15-21°C). The area receives minimal rainfall, typically less than 3 inches per year.

Hydrologically, YPG lies within the Colorado River Basin and is surrounded by the Sonoran Desert. The Colorado River provides water for irrigation and supports diverse flora and fauna. The region's hydrology is significant for the area's agricultural activities and the unique ecosystems it sustains.

Outdoor recreation opportunities in Yuma-Proving-Ground are abundant. The picturesque landscapes encompassing the proving ground offer opportunities for hiking, camping, and birdwatching. The nearby Colorado River provides options for boating, fishing, and kayaking. Additionally, YPG allows limited public access to designated areas for hunting and off-road vehicle use, contributing to the area's recreational appeal. Whether exploring the desert's unique ecosystems or enjoying outdoor activities on the river, YPG and its surroundings offer a diverse range of experiences for outdoor enthusiasts.