Phoenix, AZ – August 3, 2017

 Tombstone Exploration Corporation (OTCPK: TMBXF),  a fully reporting company announced today that the third and fourth holes Core(HQ) of drilling have been completed. The third hole (SDD3) was completed at a depth of 175 ft and the fourth hole (SDD4)  was completed at 293 ft at the 100% owned Stardust claim block located in Yuma County, Arizona.  Phase 2 drilling is scheduled for September. The Stardust drilling campaign is targeting an epithermal precious metals (gold, silver) system.

Harris Exploration Drilling and Associates Inc. (Harris Drilling), a Nevada company, finished drilling on July 26th. The core samples from the third and fourth holes were delivered to Skyline Assayers and Laboratories in Tucson, Arizona, on July 28th. The samples will be crushed and pulverized with standard steel and then proceed to be fire assayed for gold and a 24 multi-element Geochemistry for silver and multiple other trace elements.

This first phase drilling program is designed to establish strike length and test grades over a large enough width within the defined chlorite hematite hosted vein system. The drilling will attempt to define structural continuity (vein continuity along strike), grade of veins and hosting chl-hem zone, and find the width of structures.  The program, as designed, should also demonstrate grade at reasonably shallow depths. The lowest drilling angle -45 degrees is envisioned for this program.

Alan Brown, President, of TMBXF stated “We are extremely pleased with the drilling on the Stardust Project and our team’s progress.  Holes 3 and 4 are designed to test projection of gold mineralization in outcrop veins and silicification found just NE of one of the original shafts on the property. We look forwarding to receiving and reviewing the assay results and sharing with our shareholders, as there have been multiple locations of veins throughout the core that we have sent for assay.“

Tombstone Exploration Corporation is a gold silver copper exploration company based in Phoenix, Arizona. The Company’s goal is to maximize shareholder value through focused exploration, testing and development of high quality mineral targets in the prolific mineral producing areas in S.W. USA.  This goal will be achieved in part through the application of the best mineral exploration practices and techniques available to our experienced exploration and management team, including adherence to the highest possible standards of corporate responsibility, governance and conduct.

FORWARD-LOOKING STATEMENTS
This release contains statements that constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements appear in a number of places in this release and include all statements that are not statements of historical fact regarding the intent, belief or current expectations of Tombstone Exploration Corporation, its directors or its officers with respect to, among other things: (i) financing plans; (ii) trends affecting its financial condition or results of operations; (iii) growth strategy and operating strategy. The words “may,” “would,” “will,” “expect,” “estimate,” “can,” “believe,” “potential” and similar expressions and variations thereof are intended to identify forward-looking statements. Investors are cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, many of which are Tombstone Exploration Corporation’s ability to control, and actual results may differ materially from those projected in the forward-looking statements as a result of various factors. More information about the potential factors that could affect the business and financial results is and will be included in Tombstone Exploration Corporation’s filings with the Securities and Exchange Commission.