FIRST AMENDMENT TO EXPLORATION AND DEVELOPMENT OPTION AGREEMENT

FIRST AMENDMENT TO
EXPLORATION AND DEVELOPMENT OPTION AGREEMENT

THIS FIRST AMENDMENT TO EXPLORATION AND DEVELOPMENT OPTION AGREEMENT ("First Amendment") is made and entered into effective as of March 31, 2005, by and between Radius Gold Inc., a British Columbia corporation whose address is Suite 830, 355 Burrard Street, Vancouver, B.C., Canada V6C 2G8, and its wholly-owned subsidiary, Exploraciones Mineras de Guatemala, S.A., whose address is c/o Radius Gold Inc. (hereinafter collectively referred to as "Radius"), and Glamis Gold Ltd., a British Columbia corporation whose address is 5190 Neil Road, Suite 310, Reno, Nevada 89502, and its wholly-owned subsidiary, Entre Mares de Guatemala, S.A., a Guatemala corporation whose address is c/o Glamis Gold Ltd. (hereinafter collectively referred to as "Glamis"). Radius and Glamis will at times be referred to herein as the "Parties" or individually as a “Party"

RECITALS

1.

The Parties entered into that certain Exploration and Development Option Agreement as of October 14,