IsoEnergy Intersects Strong Radioactivity at the Hurricane Uranium Zone First drill hole LE20‐30 intersects 5.5m of Strong Radioactivity, extends zone 25m to the west
IsoEnergy Intersects Strong Radioactivity at the Hurricane Uranium
Zone
First drill hole LE20‐30 intersects 5.5m of Strong Radioactivity, extends zone 25m to the west
Vancouver, BC, February 4, 2020 – IsoEnergy Ltd. (“ IsoEnergy” or the “ Company”) (TSXV: ISO; OTCQX: ISENF ) is
pleased to report an intersection of strong radioactivity in the first drill hole of the winter program at the Hurricane
zone. The Hurricane zone is a new discovery of high‐grade uran ium mineralization on the Company’s 100% owned
Larocque East property (the “Property”) in the Eastern Athabasca Basin of Saskatchewan (Figure 1).
Highlights:
Drill hole LE20‐30 is located 25m west of the 2019 Hurricane zone footprint
The near‐vertical drill hole intersected 5.5m of strong radioactivity from 329.5‐335.0m
Mineralization is located primar ily in the basal sandstone imme diately above the sub‐Athabasca
unconformity at 334.8m
Steve Blower, Vice President of Exploration commented: “I’m pleased that we’ve been able to extend the Hurricane
zone with the first drill hole of the winter program. This drill will continue to expand the zone to the west and
complete several infill drill holes within the current Hurricane zone footprint. We also eagerly await the results from
the second drill, which has been tasked with evaluating the potential to expand the zone to the east. That drill has
now started its first hole, which is an undercut of 2019 step‐out drill hole LE19‐26.”
Drill Hole LE20‐30 Details
Drilled to evaluate the potential to expand the Hurricane zone footprint to the west, drill hole LE20‐30 was collared
25m west of 2019 drill hole LE19‐12, which intersected 3.2% U3O8 and 2.1% Ni over 8.5m (Figure 2). Drill hole LE20‐
30 encountered strongly altered sandstone before intersecting 5 .5m of strong radioactivity averaging greater than
14,000 CPS (RS‐125 hand‐held spectrometer) from 329.5‐335.0m (F igure 3). The mineralization is located
immediately above the sub‐Athabasca unconformity, which was intersected at 334.8m. As the drill hole continued
into the basement rocks beneath the unconformity, several strong faults were intersected, suggesting that additional
targets remain to the south on t his section (Figure 4). Sample s have been submitted to the analytical laboratory.
Chemical assay results are expected within three to four weeks.
Next Steps
The LE20‐30 drill will remain on t he west end of the Hurricane zone, infilling the current f ootprint of the zone and
continuing to expand it to the w est, where a 50m gap still rema ins between drill hole LE20‐30 and the property
boundary to the west.
The second drill will evaluate the potential to ex pand the zone to the east. This will include following up on the
strong alteration, anomalous geochemistry, and elevated radioactivity in drill hole LE19‐26, the only drill hole
completed by the Company to date that is beyond the 500m long Hurricane zone footprint. Results from a DC‐
Resistivity geophysical survey completed in the summer of 2019 support the highly prospective nature of the area,
which extends for several kilometres to the east. Meters and h oles are expected to be sp lit approximately equally
between both drills. Further results of the program will be reported periodically throughout the winter drill season.
The Larocque East Property and the Hurricane Zone
The 100% owned Larocque East property consists of 20 mineral claims totaling 8,371 ha and is not encumbered by
any royalties or other interests. Larocque East is immediately a d j a c e n t t o t h e n o r t h e n d o f I s o E n e r g y ’ s G e i g e r
property and is 35 km northwest of Orano Canada’s McClean Lake uranium mine and mill.
Along with other target areas, the Property covers a 15‐kilomet re‐long northeast extension of the Larocque Lake
conductor system; a trend of graphitic metasedimentary basement rocks that is associated with significant uranium
mineralization at the Hurricane zone, and in several occurrence s on Cameco Corp.’s neighbouring property to the
southwest of Larocque East. The Hurricane zone was discovered in July, 2018 and was followed up with a 12‐hole
drilling campaign in the winter of 2019 and a recently complete d 17‐hole summer 2019 drilling campaign.
Dimensions are currently 500m along‐strike, 40m wide and up to 10m thick. The zone is open for expansion along‐
strike and on most sections. Mineralization is polymetallic and commonly straddles the sub‐Athabasca unconformity
320 m below surface. The best intersection to date is 5.4% U3O8 over 7.0m in drill hole LE19‐16A. Drilling at Cameco
Corp.’s Larocque Lake zone on the neighbouring property to the southwest has returned historical intersections of
up to 29.9% U3O8 over 7.0 m in drill hole Q22‐040. Like the nearby Geiger property, Larocque East is located adjacent
to the Wollaston‐Mudjatik transition zone ‐ a major crustal suture related to most of the major uranium deposits in
the eastern Athabasca Basin. Importantly, the sandstone cover on the Property is thin, ranging between 140 m and
330 m in previous drilling. In addition to the Hurricane zone discovery, four historical d rill holes have intersected
weak uranium mineralization at other locations on the Property to date.
Figure 1 – Larocque East Property Map
Figure 2 – Hurricane Zone Drill Hole Location Map
Figure 3 – Drill Hole LE20‐30 Mineralization
Figure 4 – Vertical Cross‐Section 4460E (Looking East)
Qualified Person Statement
The scientific and technical information contained in this news release was prepared by Andy Carmichael, P.Geo.,
IsoEnergy’s Senior Geologist, who is a “Qualified Person” (as defined in NI 43‐101 – Standards of Disclosure for
Mineral Projects). Mr. Carmichael has verified the data disclosed. As mineral ized drill holes at the Hurricane zone
are oriented very steeply (‐80 to ‐90 degrees) into a zone of m ineralization that is interpreted to be horizontal, the
true thickness of the intersections is expected to be greater t han or equal to 90% of the core lengths. This news
release refers to properties other than those in which the Comp any has an interest. Mineralization on those other
properties is not necessarily indicative of mineralization on t he Company’s properties. For additional information
regarding the Company’s Larocque E a s t P r o j e c t , i n c l u d i n g i t s q uality assurance and quality control procedures,
please see the Technical Report dated effective May 15, 2019 on the Company’s profile at www.sedar.com.
About IsoEnergy
IsoEnergy is a well‐funded uranium exploration and development company with a portfolio of prospective projects
in the eastern Athabasca Basin in Saskatchewan, Canada and a hi storical inferred mineral resource estimate at the
Mountain Lake uranium deposit in Nunavut. IsoEnergy is led by a Board and Management team with a track record
of success in uranium exploration, development and operations. The Company was founded and is supported by
the team at its major shareholder, NexGen Energy Ltd.
Craig Parry
Chief Executive Officer
IsoEnergy Ltd.
+1 778 379 3211
www.isoenergy.ca
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+1 604 684 6730
www.isoenergy.ca
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