Unit 73

Several rims and buttes serve as navigational anchors: Stauffer Rim, Burma Rim, and Diablo Rim provide vantage points for orientation and glassing. The Whiskey Hills and Black Hills offer low-relief ridge systems useful for reading terrain and spotting game from distance. Summer Lake and Christmas Lake are prominent water features visible on maps and in the field.

Named drainages including Lost Creek, Foster Creek, and Juniper Creek create canyon corridors that funnel wildlife and provide navigation routes through otherwise featureless terrain. The Narrows provides a notable gap in the landscape, while numerous springs scattered throughout—Whiskey Spring, Deadhorse Spring, Horror Spring—mark water concentrations.

This is fundamentally low-desert country, with terrain rarely climbing above 5,000 feet and median elevation around 4,650 feet. The landscape is dominated by open sagebrush plains with sparse to no forest cover, creating vast expanses of unbroken visibility. Low volcanic ridges, buttes, and occasional rim systems break the monotony and provide glassing platforms.

Scattered juniper appears on some ridges and higher flats, but the overwhelming character is open, treeless high desert. The sparse vegetation and minimal forest create an austere, wind-swept landscape typical of Oregon's interior basins.

Road density of 1.43 miles per mile squared creates a fair distribution of access across the vast unit, preventing any single area from becoming a concentrated bottleneck. Two major highways traverse the unit, and secondary roads provide entry to the interior plains. This balanced accessibility means hunters can reach the unit from multiple directions and establish camps in various locations.

However, the vast area and open terrain mean pressure disperses across enormous country—no single location becomes overwhelmed. Most hunters concentrate along main roads and near named water features, leaving substantial areas underutilized. Mobile hunters and those willing to walk away from vehicle tracks encounter far less pressure.

Unit 73 occupies a massive tract of southeastern Oregon high desert, spanning roughly 3,100 square miles of remote basin-and-range terrain. The unit encompasses the high-desert plains and volcanic rim country characteristic of south-central Oregon's arid interior, with scattered communities like Christmas Valley and Valley Falls marking settlement patterns. Nearly 85% of the unit sits in the lower elevation band, creating a dominant landscape of sagebrush flats punctuated by low volcanic features.

The vast size and flat topography combined with fair road access define the unit's character—big country that rewards mobile hunters and those willing to cover ground.

Water availability is moderate but scattered across the unit rather than concentrated. Summer Lake and Christmas Lake anchor the landscape as reliable, visible water sources. A network of named springs including Whiskey Spring, Johnson Creek Spring, Deadhorse Spring, and Skookum Spring provides secondary sources, though seasonal reliability varies.

Small reservoirs and waterholes—Foster Reservoirs, Coyote Hole Reservoir, O'Leary Reservoir—dot the plains and offer tactical water locations. Creeks like Foster, Harvey, Juniper, and Lost Creek run seasonally through canyons and drainages. In this arid environment, water sources concentrate wildlife and define hunting strategy—glassing country from high points while planning access to reliable water sources.

Unit 73 supports elk, pronghorn, mountain sheep, goat, bear, and mountain lion across its high-desert landscape. Pronghorn thrive in the open sagebrush plains and utilize the flat country for speed and visibility—early season hunting favors glassing from ridges and buttes for long-range shooting. Elk use the same terrain, particularly canyons and low ridges where cover exists, with movement patterns tied to water sources and seasonal temperature changes.

Mountain sheep and goat occupy the rim systems and buttes, requiring steep-country tactics and extended glassing. Early season offers pronghorn and sheep opportunities with long-range visibility; later seasons find elk concentrated near reliable water. The exposure and lack of heavy timber demand glassing-intensive hunting; success depends on optics, patience, and willingness to stalk across open country.