Exploring the Heart of Wyoming’s ISR Uranium Belts
Projects Overview:
Noble Plains Uranium is advancing a high-impact portfolio across two of Wyoming’s most productive uranium basins — the Powder River and Shirley Basins — with a total of 179 mining claims and 6 State mineral leases.
Duck Creek Project (Powder River Basin): Surrounded by leading ISR producers, Duck Creek spans 4,133 acres and includes over 4,000 historic drill holes across a 3-mile trend, underscoring its near-surface uranium resource potential
Shirley East and Shirley Central (Shirley Basin): Covering 2,085 acres, these projects are located in a proven ISR district alongside major U.S. uranium developers and benefit from existing infrastructure and historical data.
With strategic land positions, ISR amenability, and historical data in place, Noble Plains is positioned in a jurisdiction with streamlined permitting to quickly advance exploration and unlock value as the uranium cycle accelerates.
Projects Overview:
Noble Plains Uranium is advancing a high-impact portfolio across two of Wyoming’s most productive uranium basins — the Powder River and Shirley Basins — with a total of 179 mining claims and 6 State mineral leases.
Duck Creek Project (Powder River Basin): Surrounded by leading ISR producers, Duck Creek spans 4,133 acres and includes over 4,000 historic drill holes across a 3-mile trend, underscoring its near-surface uranium resource potential
Shirley East and Shirley Central (Shirley Basin): Covering 2,085 acres, these projects are located in a proven ISR district alongside major U.S. uranium developers and benefit from existing infrastructure and historical data.
With strategic land positions, ISR amenability, and historical data in place, Noble Plains is positioned in a jurisdiction with streamlined permitting to quickly advance exploration and unlock value as the uranium cycle accelerates.
Projects Overview:
Noble Plains Uranium is advancing a high-impact portfolio across two of Wyoming’s most productive uranium basins — the Powder River and Shirley Basins — with a total of 179 mining claims and 6 State mineral leases.
Duck Creek Project (Powder River Basin): Surrounded by leading ISR producers, Duck Creek spans 4,133 acres and includes over 4,000 historic drill holes across a 3-mile trend, underscoring its near-surface uranium resource potential
Shirley East and Shirley Central (Shirley Basin): Covering 2,085 acres, these projects are located in a proven ISR district alongside major U.S. uranium developers and benefit from existing infrastructure and historical data.
With strategic land positions, ISR amenability, and historical data in place, Noble Plains is positioned in a jurisdiction with streamlined permitting to quickly advance exploration and unlock value as the uranium cycle accelerates.
Duck Creek Property
78 Claims | 4,134 acres (6.46 sq/m)
Situated in the heart of Wyoming’s Powder River Basin—one of America’s most prolific uranium districts—the Duck Creek Project is a standout brownfield asset for Noble Plains. The property features a 3-mile corridor of shallow, roll-front uranium mineralization, defined by over 4,000 historic drill holes and evidence of past open-pit production. With its extensive historical data, near-surface resources, and proximity to established infrastructure, Duck Creek offers exceptional potential for rapid, low-impact ISR uranium development in a proven mining jurisdiction.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 1,672 hectares (16.73 km²)
Ownership: Option to acquire 80%
Jurisdiction: Wyoming – an NRC Agreement State with ISR-permitting pathways
Duck Creek Property
78 Claims | 4,134 acres (6.46 sq/m)
Situated in the heart of Wyoming’s Powder River Basin—one of America’s most prolific uranium districts—the Duck Creek Project is a standout brownfield asset for Noble Plains. The property features a 3-mile corridor of shallow, roll-front uranium mineralization, defined by over 4,000 historic drill holes and evidence of past open-pit production. With its extensive historical data, near-surface resources, and proximity to established infrastructure, Duck Creek offers exceptional potential for rapid, low-impact ISR uranium development in a proven mining jurisdiction.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 1,672 hectares (16.73 km²)
Ownership: Option to acquire 80%
Jurisdiction: Wyoming – an NRC Agreement State with ISR-permitting pathways
Duck Creek Property
78 Claims | 4,134 acres (6.46 sq/m)
Situated in the heart of Wyoming’s Powder River Basin—one of America’s most prolific uranium districts—the Duck Creek Project is a standout brownfield asset for Noble Plains. The property features a 3-mile corridor of shallow, roll-front uranium mineralization, defined by over 4,000 historic drill holes and evidence of past open-pit production. With its extensive historical data, near-surface resources, and proximity to established infrastructure, Duck Creek offers exceptional potential for rapid, low-impact ISR uranium development in a proven mining jurisdiction.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 1,672 hectares (16.73 km²)
Ownership: Option to acquire 80%
Jurisdiction: Wyoming – an NRC Agreement State with ISR-permitting pathways
Geology & Mineralization
The Duck Creek Project is underlain by the Eocene-aged Wasatch Formation, a well-known host for uranium mineralization in the Powder River Basin. Mineralization at Duck Creek is characterized by classic roll-front uranium deposits, which are shallow and amenable to in-situ recovery (ISR) methods. Over 4,000 historic drill holes have outlined a continuous, 3-mile-long corridor of uranium mineralization occurring from less than 50 feet to 260 feet below surface. The property also shows evidence of historic open-pit production from these near-surface zones. In addition to well-defined shallow resources, there is significant exploration upside potential in the deeper and untested Fort Union formation which holds significant mineralization in the district. This offers both near-term development potential and long-term growth opportunities.
Highlights
Over 4,000 historic drill holes from legacy operator Kerr-McGee define a 3-mile uranium trend.
Surrounded by ISR projects owned by Cameco, Uranium Energy Corp. (UEC), and GTI Energy.
Shallow roll-front mineralization identified between 50 and 260 feet depth, amenable to ISR.
Confirmation drilling is planned for later this year to advance the Project toward an initial NI 43-101 compliant resource estimate.
Geology & Mineralization
The Duck Creek Project is underlain by the Eocene-aged Wasatch Formation, a well-known host for uranium mineralization in the Powder River Basin. Mineralization at Duck Creek is characterized by classic roll-front uranium deposits, which are shallow and amenable to in-situ recovery (ISR) methods. Over 4,000 historic drill holes have outlined a continuous, 3-mile-long corridor of uranium mineralization occurring from less than 50 feet to 260 feet below surface. The property also shows evidence of historic open-pit production from these near-surface zones. In addition to well-defined shallow resources, there is significant exploration upside potential in the deeper and untested Fort Union formation which holds significant mineralization in the district. This offers both near-term development potential and long-term growth opportunities.
Highlights
Over 4,000 historic drill holes from legacy operator Kerr-McGee define a 3-mile uranium trend.
Surrounded by ISR projects owned by Cameco, Uranium Energy Corp. (UEC), and GTI Energy.
Shallow roll-front mineralization identified between 50 and 260 feet depth, amenable to ISR.
Confirmation drilling is planned for later this year to advance the Project toward an initial NI 43-101 compliant resource estimate.
Geology & Mineralization
The Duck Creek Project is underlain by the Eocene-aged Wasatch Formation, a well-known host for uranium mineralization in the Powder River Basin. Mineralization at Duck Creek is characterized by classic roll-front uranium deposits, which are shallow and amenable to in-situ recovery (ISR) methods. Over 4,000 historic drill holes have outlined a continuous, 3-mile-long corridor of uranium mineralization occurring from less than 50 feet to 260 feet below surface. The property also shows evidence of historic open-pit production from these near-surface zones. In addition to well-defined shallow resources, there is significant exploration upside potential in the deeper and untested Fort Union formation which holds significant mineralization in the district. This offers both near-term development potential and long-term growth opportunities.
Highlights
Over 4,000 historic drill holes from legacy operator Kerr-McGee define a 3-mile uranium trend.
Surrounded by ISR projects owned by Cameco, Uranium Energy Corp. (UEC), and GTI Energy.
Shallow roll-front mineralization identified between 50 and 260 feet depth, amenable to ISR.
Confirmation drilling is planned for later this year to advance the Project toward an initial NI 43-101 compliant resource estimate.
Shirley Central Property
30 Claims | 665 acres (1.04 sq/m)
Shirley Central is a newly optioned and highly strategic claim block adjacent to Shirley East and surrounded by land held by Ur-Energy and Uranium Energy Corp. (UEC). Historical drilling data and proximity to permitted and producing projects position Shirley Central as a compelling brownfield target with near-term drill potential.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 269 hectares (2.69 km²)
Ownership: Optioned (up to 100%)
Historic Drilling: Historic grid drilling (25m x 25m) by Kerr-McGee identified 5 high-priority targets
Shirley Central Property
30 Claims | 665 acres (1.04 sq/m)
Shirley Central is a newly optioned and highly strategic claim block adjacent to Shirley East and surrounded by land held by Ur-Energy and Uranium Energy Corp. (UEC). Historical drilling data and proximity to permitted and producing projects position Shirley Central as a compelling brownfield target with near-term drill potential.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 269 hectares (2.69 km²)
Ownership: Optioned (up to 100%)
Historic Drilling: Historic grid drilling (25m x 25m) by Kerr-McGee identified 5 high-priority targets
Shirley Central Property
30 Claims | 665 acres (1.04 sq/m)
Shirley Central is a newly optioned and highly strategic claim block adjacent to Shirley East and surrounded by land held by Ur-Energy and Uranium Energy Corp. (UEC). Historical drilling data and proximity to permitted and producing projects position Shirley Central as a compelling brownfield target with near-term drill potential.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 269 hectares (2.69 km²)
Ownership: Optioned (up to 100%)
Historic Drilling: Historic grid drilling (25m x 25m) by Kerr-McGee identified 5 high-priority targets
Shirley East Property
71 Claims | 1421 acres (2.22 sq/m)
Located approximately 40 miles south of Casper, Wyoming, the Shirley Basin camp hosts multiple legacy uranium operations. Noble Plains' property lies within a highly prospective ISR-compatible trend, flanked by major players including Cameco, Ur-Energy, Uranium Energy Corp., enCore, and Strathmore Plus.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 575 hectares (5.75 km²)
Ownership: 100% Noble Plains
Jurisdiction: Wyoming – an NRC Agreement State with ISR-permitting pathways
Shirley East Property
71 Claims | 1421 acres (2.22 sq/m)
Located approximately 40 miles south of Casper, Wyoming, the Shirley Basin camp hosts multiple legacy uranium operations. Noble Plains' property lies within a highly prospective ISR-compatible trend, flanked by major players including Cameco, Ur-Energy, Uranium Energy Corp., enCore, and Strathmore Plus.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 575 hectares (5.75 km²)
Ownership: 100% Noble Plains
Jurisdiction: Wyoming – an NRC Agreement State with ISR-permitting pathways
Shirley East Property
71 Claims | 1421 acres (2.22 sq/m)
Located approximately 40 miles south of Casper, Wyoming, the Shirley Basin camp hosts multiple legacy uranium operations. Noble Plains' property lies within a highly prospective ISR-compatible trend, flanked by major players including Cameco, Ur-Energy, Uranium Energy Corp., enCore, and Strathmore Plus.
Commodity: Uranium (U₃O₈)
Deposit Type: Roll-front / sandstone-hosted
Land Area: 575 hectares (5.75 km²)
Ownership: 100% Noble Plains
Jurisdiction: Wyoming – an NRC Agreement State with ISR-permitting pathways
Geology & Mineralization
The project is underlain by Eocene-aged arkosic sandstones, known to host classic roll-front uranium deposits. These permeable sandstone units are confined by impermeable shale above and below, creating the ideal environment for uranium-bearing oxidized fluids to precipitate along redox boundaries.
Mineralization occurs as uraninite and coffinite coatings on sand grains—fully amenable to In Situ Recovery (ISR) mining methods.
Highlights
Classic Wyoming-style roll-front system
Mineralization hosted at shallow depths
ISR-compatible hydrogeology and chemistry
Multiple stacked intercepts within single holes
Geology & Mineralization
The project is underlain by Eocene-aged arkosic sandstones, known to host classic roll-front uranium deposits. These permeable sandstone units are confined by impermeable shale above and below, creating the ideal environment for uranium-bearing oxidized fluids to precipitate along redox boundaries.
Mineralization occurs as uraninite and coffinite coatings on sand grains—fully amenable to In Situ Recovery (ISR) mining methods.
Highlights
Classic Wyoming-style roll-front system
Mineralization hosted at shallow depths
ISR-compatible hydrogeology and chemistry
Multiple stacked intercepts within single holes
Geology & Mineralization
The project is underlain by Eocene-aged arkosic sandstones, known to host classic roll-front uranium deposits. These permeable sandstone units are confined by impermeable shale above and below, creating the ideal environment for uranium-bearing oxidized fluids to precipitate along redox boundaries.
Mineralization occurs as uraninite and coffinite coatings on sand grains—fully amenable to In Situ Recovery (ISR) mining methods.
Highlights
Classic Wyoming-style roll-front system
Mineralization hosted at shallow depths
ISR-compatible hydrogeology and chemistry
Multiple stacked intercepts within single holes
Exploration Programs
Winter 2024 Drilling Program:
48 vertical holes drilled to ~53m depth
Spaced ~160 meters apart for infill validation
40 holes intersected uranium
133 intercepts recorded, with thicknesses from 0.91m to 7.92m
Grades ≥0.01% eU₃O₈, with 3–4 zones per hole
Two trends of higher-grade thicker mineralisation identified – open north and south
Next Steps:
Follow-up drilling in Q3–Q4 2025 to extend and infill identified trends
Exploration Programs
Winter 2024 Drilling Program:
48 vertical holes drilled to ~53m depth
Spaced ~160 meters apart for infill validation
40 holes intersected uranium
133 intercepts recorded, with thicknesses from 0.91m to 7.92m
Grades ≥0.01% eU₃O₈, with 3–4 zones per hole
Two trends of higher-grade thicker mineralisation identified – open north and south
Next Steps:
Follow-up drilling in Q3–Q4 2025 to extend and infill identified trends
Exploration Programs
Winter 2024 Drilling Program:
48 vertical holes drilled to ~53m depth
Spaced ~160 meters apart for infill validation
40 holes intersected uranium
133 intercepts recorded, with thicknesses from 0.91m to 7.92m
Grades ≥0.01% eU₃O₈, with 3–4 zones per hole
Two trends of higher-grade thicker mineralisation identified – open north and south
Next Steps:
Follow-up drilling in Q3–Q4 2025 to extend and infill identified trends