Roca Mines Inc. Drilling Results At Nuevo / Once Bocas Target by 24hgold

Mots clés associés : G Mexico |

Re: News Release - Tuesday, April 13, 2010
Title: ROCA - Drilling Results At Nuevo / Once Bocas Target

Vancouver, British Columbia: Roca Mines Inc. (TSX-V: ROK) ("Roca" or "the Company") has received final assay results from a single drillhole at the Once Bocas target at the Nuevo Milenio silver-gold project. The project is located near Tepic in the state of Nayarit, Mexico.

Drilling Highlights:

Drillhole NM-10-05 intersected several intervals of silver-gold mineralization at Once Bocas, returning a near-surface interval of 12.19 m averaging 90.9 g/t Ag and 0.496 g/t Au (including 2.49 m grading 379.6 g/t Ag and 2.238 g/t Au), two intermediate intervals, and a lower 4.07 m interval averaging 114.5 g/t Ag and 0.311 g/t Au; and,
Once Bocas has had very limited drilling to date, however the recent results highlight mineralization extends beyond discreet veins and into appreciable zones of altered wallrock, locally containing quartz stockworks and sheeted veinlets.

Once Bocas Zone
Once Bocas is a broad, moderate to intense argillic alteration zone that includes numerous well-developed quartz stockworks and several discrete veins. The zone has a minimum strike length of 350 m, its vertical dimension is more than 150 m and its width at surface is approximately 100 m. Additional surface showings to the northwest and southeast along strike suggest that the Once Bocas zone could have an overall strike length well in excess of 1,000 m.

Drillhole NM-10-05, a twin of DDH-06-03, was collared on the central part of the known Once Bocas zone, 550 metres west-southwest of drillhole NM-10-01. Hole NM-10-05 successfully cut the zone returning multiple intersections of low-grade silver-gold mineralization within which high-grade silver-gold veins occur. The following table compares previous sample intervals and assays with those from drillhole NM-10-05 of the 2010 program.

Table 1: Comparison of DDH-06-03 and NM-10-05 (Once Bocas)

Drill Hole	From (m)	To (m)	Interval (m)	Ag (g/t)	Au (g/t)
DDH-06-03	18.00	30.00	12.00	109.6	1.170
including	26.00	28.00	2.00	471.7	5.479
And	132.00	146.00	14.00	18.7	0.135
And	186.00	188.00	2.00	46.0	0.136
NM-10-05	18.30	30.49	12.19	90.9	0.496
including	25.61	28.10	2.49	379.6	2.238
including	26.55	28.10	1.55	568.2	3.327
And	108.23	112.80	4.57	27.3	0.174
And	125.00	134.15	9.15	40.6	0.110
including	131.10	134.15	3.05	92.2	0.128
And	245.93	250.00	4.07	114.5	0.311
including	246.95	248.48	1.53	227.0	0.713

Nuevo Milenio Geologic Setting
Nuevo Milenio is a low-sulphide epithermal camp that is hosted by a sequence of intermediate to felsic volcanic flows, tuffs and breccias within a large collapsed caldera setting. The three principal northwest-trending vein systems on the property are Dos Hornos-Veta Tomas, Once Bocas and Chacuaco-Cafetal. Previous exploration drilling defined the Dos Hornos-Veta Tomas system over a strike length of approximately 1300 m and the Once Bocas system over a strike length of 350 m. Surface exploration and drilling has indicated that the systems are open in all directions.

The Company is currently reviewing its recent exploration results in context with historic information collected by Cream Minerals Ltd. Updated geological maps and sections are being prepared and a summary of that review and near-term exploration plans at Nuevo Milenio will be described shortly in a news release.

All diamond drilling for the program has been carried out by Falcon Perforaciones Mexico, S.A. de C.V. All assaying has been conducted by ACME Analytical Laboratories of Vancouver, BC. Samples were analyzed for 36 elements using four-acid digestion ICP-ES and for gold and silver using fire assay fusion with ICP-ES finish. Over-limits for gold and silver were re-assayed using a gravimetric finish.

Bob Lane, P.Geo is the 43-101 qualified person responsible for the supervision of the drilling and sampling program and the preparation of this news release.

ROCA MINES INC.
"Scott Broughton"

Scott E. Broughton - President and CEO

For further information contact:
Investor Relations
Tel: 604-684-2900
Fax: 604-684-2902
Email: info@rocamines.com
Web: www.rocamines.com

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

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