M I N E  L E A S E
                               ------------------

This  agreement of lease made and entered into this 6th day of April,  1998,  by
and  between  Michael M.  Chaffee,  Bruce  Cooper,  Raymond  Baptista  and Bryan
Jackowitz whose principal address is 28281 Crown Valley Parkway,  Laguna Niguel,
California,  92677  (Lessor) and The Summa Metals  Corporation  whose  principal
address is 28281 Crown Valley Parkway, Laguna Niguel, California, 92677.

Whereas:       Lessor has the right and title to certain property, and;

Whereas:       Lessee desires to lease said premises, and;

Therefor:      the parties hereto agree as follows:

That the Lessor for and in consideration  of one hundred  dollars,  cash in hand
paid,  receipt  of  which  is  hereby  acknowledged,  and of the  covenants  and
agreements hereinafter performed, does grant, convey, demise and let exclusively
unto the said Lesee  that  certain  tract of land  situate in the Count of Inyo,
State of California, further described as follows:

                    CLAIM NAME   CAMC NUMBER      LOCATION
                     Deep Gold      273074         4-1-98

for the sole  purpose of  exploring,  operating  and mining  precious  and other
minerals  and to  sell  the  products  thereof.  Lessee  shall  perform  or have
performed a minimum of forty (40)  man-hours of  constructive  work on the claim
per  year,  which  may be  accumulated  over a period  of two  years to total 80
man-hours of five days each in a two year period.

The Lessee agrees to keep said  premises free and clear of all costs,  liens and
encumbrances  done, made or suffered by permit, the Lessor to place and maintain
in a conspicuous place upon said premises as such shall be lawfully necessary to
protect the Lessor against such claims.

It is agreed  that this lease shall  remain in force for a term of twenty  years
from this date,  and may be extended  for twenty  years if all above  conditions
have been met.

Witness our hand(s) the day and year first above written:

/s/ Michael Chaffee                     /s/ Raymond Baptista
    -------------------------------         ------------------------------------
    Michael Chaffee                         Raymond Baptista


/s/ Brian Jackowitz                     /s/ Bruce Cooper
    -------------------------------         ------------------------------------
    Brian Jackowitz                         Bruce Cooper


/s/ Raymond C. Baptista
    -------------------------------
    The Summa Metals Corporation, Lessee
    Raymond Baptista,
    Ex. V.P, CFO