19:56 EDT Monday, November 01, 2010

TORONTO, ONTARIO--(Marketwire - Nov. 1, 2010) -

Greencastle Resources Ltd. (TSX VENTURE:VGN) ("Greencastle" or the "Company") announces that the Company has completed a state-of–the-art detailed heli-borne magnetic and EM geophysical survey to define targets for follow up exploration on the company's Nechako property, where Greencastle has an option to acquire a 100% interest in the property, covering approximately 13,000 ha (28 claims), in the Nechako Plateau region of BC.

The property is located in the same general area where Richfield Ventures Corp. is currently delineating a bulk tonnage gold deposit at its Blackwater project.