As of 30 August, a total of 17,520m has been drilled at the Rook I property.
The hole AR-14-30 intersected 206.6m of composite mineralization, including 53.85m off-scale radioactivity with more than 10,000cps within a 429.9m section.
Hole AR-14-28 and AR-14-29a intersected 202.05m and 123.35m total composite mineralization respectively at more than 10,000cps.
Of the 30 drill holes completed at Arrow, 28 have to date intersected uranium mineralization with of more than 500cps radioactivity as defined by an RS-125 gamma spectrometer, the company said.
NexGen Exploration and Development vice president Garrett Ainsworth said: "Vertical drill hole AR-14-30 was successful in confirming the pinch and swell of mineralization within one of the sub-vertical shear zones that hosts high grade uranium at the Arrow zone.
"Angled drill holes AR-14-28 and -29a were aggressive 45 to 50 m step outs that intersected significant intervals of mineralization, which provides further evidence that Arrow is only getting bigger."
Split core samples will be taken, and intervals will be submitted for analysis at SRC Geoanalytical Laboratories.
