Unit 91

The unit's character is defined by engineered water infrastructure rather than natural landmarks. Key ditches include the Harmony, Farmers, Lowline, and Henderson Smith ditches—these are the navigational features and water sources hunters will actually use. Lewis Creek, Sevenmile Creek, and Cedar Creek provide natural drainage corridors that offer cover and water.

The small communities of Ford and Selma serve as practical reference points. Because the unit is flat and extensively modified by agriculture, ditches and creek bottoms are more useful for orientation than topographic features.

The terrain sits entirely below 4,100 feet, making this the lowest-elevation hunting country in Colorado's GMU system. The landscape is predominantly open plains with minimal forest cover—wide expanses of irrigated fields, native grassland, and scattered brush dominate. This is shortgrass prairie country, fundamentally different from mountain units.

Vegetation follows water availability: lush riparian zones along ditches and creeks contrast sharply with drier pastures and fields between irrigation lines. The flat, open nature means sparse tree cover except in small shelterbelts and along drainage bottoms.

Nearly 241 miles of roads thread through the unit, but most are county and ranch roads on private ground. U.S. 138, I-76, and U.S. 6 form hard boundaries rather than access corridors. Access to private land depends entirely on landowner permission—this is not a drive-and-hunt unit.

The straightforward road network means those with permission find navigation simple. Pressure is moderate to high during seasons due to proximity to Front Range population centers and ease of access. Early mornings and off-peak weekdays offer better solitude than weekends.

GMU 91 occupies a compact section of Logan County in northeastern Colorado's lower plains. The unit is bordered by U.S. 138 on the north and west, I-76 and U.S. 6 on the south, and Red Lion Road (CR 93) on the east. The adjacent communities of Ford, Marcott, and Selma sit at the unit's edges, providing town access for supplies and staging.

This is primarily private agricultural land interspersed with irrigation infrastructure that has shaped the landscape for over a century.

Water is abundant in this unit, but it's primarily managed rather than natural. Irrigation ditches crisscross the landscape and provide reliable water year-round—they're the dominant water feature. Lewis Creek, Sevenmile Creek, and Cedar Creek offer seasonal to year-round flow depending on runoff and irrigation timing.

These creeks create linear habitat corridors attractive to elk and deer. Ponds and reservoirs associated with irrigation systems scattered throughout add water points. The interconnected ditch system means water scarcity is rarely a hunting issue here, unlike most Colorado units.

GMU 91 holds mule and white-tailed deer, elk, pronghorn, and occasional moose and mountain lion. The irrigated croplands and pastures attract deer and pronghorn year-round; elk move into the unit seasonally from higher country. Hunting strategy depends heavily on private land access and understanding irrigation timing—animals concentrate near water and feed.

Early season means hunting transition zones where animals move between daytime security cover (ditches, creek bottoms) and night feeding in fields. Pronghorn hunting focuses on open grassland glassing early and late in the day. This unit requires land access to be effective; scouting prior to season is essential.