Arizona Silver Exploration Inc (CVE:AZS) says a rig is expected on site this week at its project in La Paz county ahead of the second phase of 2017 drilling.
A 1500 meter (m) drilling program is planned to test two targets.
Arizona said it had started access road and drill site preparation.
A very large system..?
The firm says the Ramsey mineral system appears to be very large and is wide-open to the east and south, where there has been no previous drilling.
Five holes will be drilled from within the large silica alteration zone on top of Ramsey hill to the southeast of the old Ramsey mine workings.
This will test for continuity of silver, (with lead and zinc) mineralization, which was identified by historic underground drilling from the old Ramsey mine workings and also hit in the company's 2016-2017 surface drilling program.
A large anomaly..
At the Western IP anomaly, one hole is planned to test this large anomaly, said Arizona.
The drill site is located about 1,000 metres west of the old Ramsey Mine workings. A large IP response was detected in an April 2017 survey along three IP lines across a distance of over 500 metres squared, and it is open ended.
Geophysical modelling of this anomaly indicated it was likely sourced from a sulphide-bearing body at least 500 metres long, 500 metres wide, and 500 metres thick.