2,568 results — type: Journal Article ·
ARCHEOLOGY: <i>Archeological Investigations on the Uncompahgre Plateau in West Central Colorado.</i> H. M. Wormington and Robert H. Lister
Pumping Stations on the Colorado River Aqueduct
Additional Notes on the Birds of the Elk Mountain Region, Colorado
Daily roadkill monitoring and long-term population census reveal female-biased mortality for a small mammal along a wildland-urban interface
Soluble Soils: A Review of Engineering Assessments and Their Use in the Moab Valley
The Uncompahgre Uplift within the Colorado Plateau contains several salt anticline valleys. The Moab Valley is situated within one of these valleys which formed as the underlying salt member of the Paradox Formation migrated. As the unit migrated, the resulting collapse of the valley left behind sur
Boulder County [Colorado] tungsten ores
Ferberite, the chief tungsten mineral, occurs in (a), coarse textured, drusy veins; (b), stringers with chalcedony and cryptocrystalline quartz; and (c), breccia fragments. In (a), ferberite coats the walls, and scheelite is in the druses; in (b), ferberite likewise encrusts the walls and quartz cru
Reactivation of a Cretaceous Thrust Surface by Basin-and-Range Extension, Southwestern Gunnison Plateau, Central Utah
Recent work in central Utah has outlined the broader features of the area's thrust geometry. Although individual interpretations differ, most models indicate the region is similar to better understood segments of the Cordilleran thrust belt. Poor and limited seismic data and the paucity of drill-hol
The Reserved Rights Doctrine: Case Study Involving Black Canyon of the Gunnison National Park
Supreme Court has developed a legal doctrine -the "
Occurrence, geology, and economic value of the pitchblende deposits of Gilpin County, Colorado
The role of snowmelt and subsurface heterogeneity in headwater hydrology of a mountainous catchment in Colorado: A model-data integration approach
Abstract Mountainous headwater streams are sustained by both snowmelt‐driven streamflow and groundwater discharge in the Upper Colorado River Basin. However, predicting headwater stream discharge magnitude and peak flow timing is challenging in mountainous terrains, where snowmelt rates vary with ve
Differences in gut microbes across age and sex linked to metabolism and microbial stability in a wild hibernating mammal
The gut microbiome has a well-documented relationship with host fitness, physiology, and behavior. However, most of what is known comes from captive animals where diets and environments are more homogeneous or controlled. Studies in wild populations that experience dynamic environments and have natu
Additional evidence of Rivoli's Hummingbird in Colorado
Changes in hunting season regulations (1870s–2019) reduce harvest exposure on greater and Gunnison sage-grouse
Hunter harvest is a potential factor contributing to population declines of sage-grouse (Centrocercus spp.). As a result, wildlife agencies throughout western North America have set increasingly more conservative harvest regulations over the past 25 years to reduce or eliminate hunter success and co
Stages and epochs of mineralization in the San Juan Mountains, Colorado, as shown at the Dunmore Mine, Ouray County, Colorado
The Dunmore lode is localized along a persistent fissure zone over two miles long and averaging nearly 100 feet in width along the length of the Dunmore claim. The fault in which the lode is located offset the pre-Cambrian quartzite and slate walls about 4,500 feet prior to deposition of the overlyi
Steam Navigation on the Colorado River
Extending the social cohesion hypothesis: is group social structure associated with dispersal in yellow-bellied marmots (Marmota flaviventer)?
Dispersal is an important individual decision which may influence individual fitness as well as population viability. The social cohesion hypothesis posits more social individuals remain at home, which is supported by prior work across taxa. However, how the sociality and connectivity of the group a
Community College Students in the Field: A review of a Community Conversation on Successful Programs and Strategies
To explore how field experiences can be designed to engage more community college students, the Undergraduate Field Experience Research Network (UFERN) held a "community conversation" (Community Colleges in the Field: Successful Programs and Strategies) on 15 October 2021. The hour-long virtual meet
Geophysical case history; Black Hollow field, Weld County, Colorado
Abstract The Black Hollow field is located in Weld County, Colorado, on the W. flank of the Denver-Cheyenne Basin. The producing reservoir is the Lyons Sandstone of Permian age. Seismic work was begun in the area in 1944, following up gravity leads resulting from a gravity survey done in 1943. A min