This is some misc info, from the 43101 (From pages 4-6):

Claims A, B, E & F are all 1000 Ha

Claim C is 600 Ha & Claim D is 700 Ha

Note: 1 hectare = 2.47 acres

Mining concessions in Peru are granted on UTM-defined coordinates (UTM major intersections) over areas ranging from 100 to 1,000 Ha in size. Once staked and granted by the Peruvian Government, mining titles are irrevocable and perpetual, as long as the titleholder complies with certain payment obligations to the Ministerio de Energia y Minas. These payments are known as “vigencias”, translated as “Mining Good-Standing Fees” and are regulated and collected by the national governing body, the Ministerio de Energia y Minas. No royalties or other production- based monetary obligations are imposed on holders of mining concessions; however title holders have compulsory annual vigencias of $3.00 per hectare for each concession actually acquired or a pending application (or “petitorio”), by June 30th of each year. The concession holder must sustain a minimum level of annual commercial production of greater than $100 per hectare in gross sales within eight (8) years of the grant of the concession or, if the concession has not been put into production within that period, the annual vigencia increases to $4.00 per hectare for the 9th through 14th years of the grant of the concession, and to $10 per hectare thereafter. The concession terminates if annual rental is not paid for three years in total over the periods or for two consecutive years.