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Fri, Aug 13, 2010

Comstock Mining Announces Results Of Successful Spring Drilling Program

Virginia City, NV (August 12, 2010) -- Comstock Mining Inc. (“Comstock Mining” or the Company”)(OTCBB: LODE) announced today the results of its Spring 2010 drilling program. The drilling, concentrated in the Lucerne resource area of the Company’s Comstock Mine Project, was designed to increase the Company’s knowledge in several locations designated as possible starter pit locations, and also to explore extensions of the precious metals mineralization to the east and to the north of the previous drilling. The program was completed with 51 reverse circulation (RC) holes totaling 29,913 feet.

“The drilling results exceeded our expectations, with significant mineralized intervals of 20 or more consecutive feet encountered in 42 of the 51 holes, and 100 or more consecutive feet in 16 of the 51 holes,” stated Corrado DeGasperis, Comstock Mining’s Chief Executive Officer. “The results are a tribute to the thorough planning and execution of our geological team,” continued Mr. DeGasperis. “We are currently incorporating these drill results into a new technical report and they represent an important step toward our goal of increasing shareholder value by increasing our mineral resources and resuming mine production.”

“Our geological team developed a new conceptual model for the Silver City fault zone, that we used to design this drilling program,” stated Larry Martin, Comstock Mining’s Chief Geologist. “The success of this program continues to validate our working model, and provides some significant additional targets for our next round of exploration.”

The 2010 Spring program focused upon select locations of the Lucerne resource area, designated the Lucerne-Woodville, Hartford and Justice-Keystone areas and the East Side target. Drill intervals of contiguous mineralized material (gold content greater than 0.010 ounces per ton (opt) and length greater than 20 feet) were intercepted in 42 of the 51 RC drill holes. The following provides a brief description for and highlights selected drill holes of each area. A table listing all of the drill holes in the program is included as an appendix.

Lucerne-Woodville Area

The Lucerne-Woodville area extends from the previously-mined Lucerne pit northeasterly to the area of the historic Woodville bonanza. The 19 RC drill holes completed in this area totaled 2,369 feet, and 18 of the 19 drill holes intercepted significant precious metals mineralization. The significant mineralization and the patented land position make it a possible starter pit location.

The following selected three drill holes and intercepts highlight the length and grade of mineralization that has been encountered in the favorable host rocks and areas of structural complexity in the Lucerne-Woodville area. Drill hole P10-05 intercepted four specific zones that reflect the current structural model of multiple sub-parallel faults collectively delineating the Silver City fault zone.

Drill Hole

From
(feet)

To
(feet)

Interval
(feet)

Gold (oz/ton)

Silver
(oz/ton)

 

 

 

 

 

 

P10-05

100

245

145

0.052

0.227

 

280

320

40

0.034

0.064

 

415

460

45

0.026

0.070

 

605

635

30

0.076

0.689

 

 

 

 

 

 

P10-21

25

225

200

0.110

0.575

 

 

 

 

 

 

P10-23

205

400

195

0.079

0.197

 

435

470

35

0.037

0.269

East Side Target

The south end of the historic Lucerne pit is an area of structural complexity. Multiple cross-cutting, northeasterly striking structures are exposed on the western high wall, a remnant from historic open pit mining operations. These structures were projected to the east, where their intersection with the Gold Canyon fault is designated the East Side target. The Gold Canyon fault is the eastern-most fault within the Silver City fault zone, a series of sub-parallel faults including the Gold Canyon, Silver City, Billie the Kid and Drysdale faults.

Seven reverse circulation drill holes were positioned to test the target and a total of 4,879 feet of drilling was completed. All seven of the drill holes in this targeted area intercepted significant precious metals mineralization. The following are highlights of the mineralized intervals from three selected drill holes.

Drill Hole

From
(feet)

To
(feet)

Interval
(feet)

Gold (oz/ton)

Silver
(oz/ton)

 

 

 

 

 

 

P10-14

75

160

85

0.066

0.859

 

320

420

100

0.072

0.362

 

 

 

 

 

 

P10-16

110

195

85

0.216

0.243

 

 

 

 

 

 

P10-51

170

305

135

0.043

0.601

Hartford Area

The Hartford area is located west of the historic Lucerne pit, above the remnant high wall mentioned previously. The mineralization is structurally controlled by east to west and northeast faults and a quartz porphyry intrusive body.

Initially nine drill holes, with a total depth of 2,595 feet, were located to test the near surface and outcropping mineralization, which makes this area another possible location for a starter pit on patented mining claims. Significant gold mineralization was intercepted in three of the nine holes, shown below.


Drill Hole

From
(feet)

To
(feet)

Interval
(feet)

Gold (oz/ton)

Silver
(oz/ton)

 

 

 

 

 

 

P10-44

5

120

115

0.018

0.390

 

 

 

 

 

 

P10-46

50

110

60

0.013

0.314

 

 

 

 

 

 

P10-48

10

70

60

0.019

0.827

Justice-Keystone area

The Justice and Keystone target areas are located north of the Lucerne-Woodville area, along the northern projection of the Silver City fault zone. The southern boundary of the Justice patented claim abuts the northern end of the Lucerne patent, with the Keystone patented claim adjoining it to the north.

The exploration efforts for the Justice and Keystone targets are in an early state. During the 2010 Spring program, 16 drill holes were completed in this area, with a total of 10,070 feet of drilling. Geologic logs of the drill holes show that the thickness of the volcanic pile has increased just north of the Lucerne-Woodville area. A review of the drill results compared with the historic mine development demonstrates a periodicity of stope development and expansion of mineralization within receptive volcanic host rocks along the strike and down the dip of the Silver City fault zone. This finding has established a sound basis for future drilling in this area. The following four drill holes highlight the mineralized intervals intercepted.

Drill Hole

From
(feet)

To
(feet)

Interval
(feet)

Gold (oz/ton)

Silver
(oz/ton)

 

 

 

 

 

 

P10-18

155

230

75

0.019

0.206

 

 

 

 

 

 

P10-27

475

525

50

0.046

0.155

 

 

 

 

 

 

P10-29

410

440

30

0.098

0.093

 

 

 

 

 

 

P10-35

50

75

25

0.163

1.786

 

 

 

 

 

 

The following map shows a portion of Comstock Mining’s Lucerne resource area with the locations of the RC holes in the 2010 Spring drilling program. The featured holes from each of the targeted areas are labeled.

cm_spring2010drilling

Comstock Mining's Spring 2010 Drilling, with Highlighted Holes

 

“The Lucerne resource area is approximately 5000 feet long, with an average width of 600 feet. The near-surface mineralization discovered in the East Side Target is a strong validation of our exploration model. We look forward to continuing with additional targets in our Fall drilling program. Our methodical approach toward further exploration of the Comstock Lode is steadily advancing us toward production in 2011,” concluded Mr. DeGasperis.

 

About Comstock Mining Inc.

Comstock Mining Inc. is a North American precious metals mining company, focused in Nevada, with extensive, contiguous property in the Comstock Lode District.  The Company began acquiring properties in the Comstock in 2003. Since then, the Company has consolidated a significant portion of the Comstock Lode District, amassed the single largest known repository of historical and current geological data on the Comstock Lode region, secured permits, built an infrastructure and brought the exploration project into test mining production. We continue acquiring additional properties in the district, expanding our footprint and creating opportunities for exploration and mining. The goal of our strategic plan is to deliver stockholder value by validating qualified resources (at least measured and indicated) and reserves (probable and proven) of 3,250,000 gold equivalent ounces by 2013, and commencing commercial mining and processing operations by early 2011, with annual production rates of 20,000 gold equivalent ounces.

Cautionary Note to U.S. Investors

This press release uses the terms “measured resources,” “indicated resources,” and “inferred resources,” which are calculated in accordance with the Canadian National Instrument 43-101 and the Canadian Institute of Mining and Metallurgy Classification system. The United States Securities and Exchange Commission (the “SEC”) does not recognize these terms and the SEC guidelines (Industry Guide 7) provide that such terms shall not be included in a registrant’s filings with the SEC (unless required to be disclosed by foreign or state law). The SEC permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. “Inferred resources” have a great amount of uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility.  It cannot be assumed that all or any part of an “inferred mineral resource” will ever be upgraded to a higher category.  U.S. investors are cautioned not to assume that any part or all of a measured, indicated or inferred resource exists or is economically or legally mineable. U.S. investors are urged to consider closely the disclosure in our Form 10-K which may be secured from us, or from the SEC's website at http://www.sec.gov.

Forward-Looking Statements

This press release and any related calls or discussions may contain forward-looking statements. All statements, other than statements of historical facts, are forward-looking statements.  Forward-looking statements include statements about matters such as: future prices and sales of and demand for our products; future industry market conditions; future changes in our exploration activities, production capacity and operations; future exploration, production, operating and overhead costs; recapitalization and balance sheet restructuring activities (including debt-for-equity exchanges, land transactions, capital raising and other activities); operational and management restructuring activities (including implementation of methodologies and changes in the board of directors); future employment and contributions of personnel; tax and interest rates; capital expenditures and their impact on us; nature and timing of restructuring charges and the impact thereof; productivity, business process, rationalization, restructuring, investment, acquisition, consulting, operational, tax, financial and capital projects and initiatives; contingencies; environmental compliance and changes in the regulatory environment; offerings, sales and other actions regarding debt or equity securities; and future working capital, costs, revenues, business opportunities, debt levels, cash flows, margins, earnings and growth.  
The words "believe," "expect," "anticipate," "estimate," "project," "plan," "should," "intend," "may," "will," "would," "potential" and similar expressions identify forward-looking statements, but are not the exclusive means of doing so. These statements are based on assumptions and assessments made by our management in light of their experience and their perception of historical and current trends, current conditions, possible future developments and other factors they believe to be appropriate. Forward-looking statements are not guarantees, representations or warranties and are subject to risks and uncertainties that could cause actual results, developments and business decisions to differ materially from those contemplated by such forward-looking statements. Some of those risks and uncertainties include the risk factors set forth in our SEC filings and the following: the current global economic downturn and capital market weakness; the speculative nature of gold or mineral exploration, including risks of diminishing quantities or grades of qualified resources and reserves; operational or technical difficulties in connection with exploration or mining activities; contests over our title to properties; our ability to cure defaults under our current indebtedness; our substantial indebtedness and the impact such indebtedness may have on us; the possibility that our operating performance and operating prospects, and capital market conditions will limit our ability to timely meet our debt service obligations, comply with debt covenants, obtain necessary financing or refinancing or restructure indebtedness or our debt service obligations on acceptable terms or at all; potential dilution to our stockholders from our recapitalization and balance sheet restructuring activities; potential inability to continue to comply with government regulations; adoption of or changes in legislation or regulations adversely affecting our businesses; business opportunities that may be presented to or pursued by us; changes in the United States or other monetary or fiscal policies or regulations in response to the recent capital markets and economic crises; interruptions in our production capabilities due to unexpected equipment failures; fluctuation of prices for gold or certain other commodities (such as silver, copper, diesel fuel, and electricity); changes in generally accepted accounting principles; geopolitical events; potential inability to implement our business strategies; potential inability to grow revenues organically; potential inability to attract and retain key personnel; interruptions in delivery of critical supplies and equipment raw materials due to credit or other limitations imposed by vendors; assertion of claims, lawsuits and proceedings against us; potential inability to maintain an effective system of internal controls over financial reporting; potential inability or failure to timely file periodic reports with the SEC; potential inability to list our securities on any securities exchange or market; and work stoppages or other labor difficulties. Occurrence of such events or circumstances could have a material adverse effect on our business, financial condition, results of operations or cash flows or the market price of our securities.  All subsequent written and oral forward-looking statements by or attributable to us or persons acting on our behalf are expressly qualified in their entirety by these factors.  We undertake no obligation to publicly update or revise any forward-looking statement.
Neither this press release nor any related calls or discussions constitutes an offer to sell or the solicitation of an offer to buy any securities.

Contact information for Comstock Mining Inc.:
P.O. Box 1118
Virginia City, NV 89440
Tel 775.847.5272
Fax 775.847.4762
http://www.comstockmining.com

 

Appendix – Comstock Mining Complete Spring Drill Program Results

The following table includes all of the significant mineralized intervals from Comstock Mining's Spring 2010 reverse circulation (RC) drilling program. A mineralized interval is included only if it contains at least ten consecutive feet of mineralization, with a gold assay greater than or equal to 0.010 ounces per ton. The program included 51 holes, totaling 29,913 feet of drilling. The following table of results is organized by target area.

Hole ID

Depth From (ft)

Depth To (ft)

Length (ft)

Au (oz/ton)

Ag (oz/ton)

Notes









Significant Drill intercepts in the Lucerne / Woodville Area















P10-01

10

50

40

0.026

0.169

Backfill from Surface Mining


270

300

30

0.077

0.366



310

320

10

0.154

1.878

Backfilled Historic Mine Workings


320

450

130

0.032

0.206



435

450

15

0.017

0.036



470

485

15

0.021

0.037









P10-02

0

30

30

0.010

0.421

Backfill from Surface Mining


35

90

55

0.019

0.603









P10-03

0

30

30

0.011

0.445

Backfill from Surface Mining


30

70

40

0.016

1.309




355

370

15

0.022

0.124









P10-04

90

100

10

0.014

0.363



130

135

5

0.103

0.484









P10-05

5

90

85

0.018

0.412

Backfill from Surface Mining


100

245

145

0.052

0.227



280

320

40

0.034

0.064



415

460

45

0.026

0.070



605

635

30

0.076

0.689









P10-06

5

35

30

0.018

0.294

Backfill from Surface Mining


60

225

165

0.048

0.205



300

320

20

0.099

0.131



340

360

20

0.027

0.235









P10-07

5

105

100

0.014

0.514

Backfill from Surface Mining


105

115

10

0.073

0.902



175

185

10

0.021

0.193









P10-08

0

55

55

0.021

0.389

Backfill from Surface Mining


60

125

65

0.051

0.459



165

180

15

0.026

0.551



225

240

15

0.032

0.407









P10-09

0

100

100

0.019

0.706

Backfill from Surface Mining


100

460

360

0.028

0.546



515

525

10

0.087

0.646









P10-10

0

25

25

0.013

0.196

Backfill from Surface Mining


100

225

125

0.055

0.124



285

310

25

0.021

0.073



320

345

25

0.037

0.072



375

385

10

0.024

0.090



585

600

15

0.021

0.391









P10-11

0

60

60

0.017

0.456

Backfill from Surface Mining








P10-12

 

0

50

50

0.028

1.011

Backfill from Surface Mining


215

455

240

0.032

0.245


including

360

400

40

0.032

0.442

Backfilled Historic Mine Workings


625

645

20

0.010

0.061



870

875

5

0.118

0.828



905

925

20

0.042

0.171

















P10-19

35

90

55

0.034

0.596



180

195

15

0.036

0.123



235

250

15

0.029

0.052









P10-21

25

225

200

0.110

0.575


including

130

150

20

0.073

1.131

Backfilled Historic Mine Workings








P10-22

0

15

15

0.014

0.214

Backfill from Surface Mining


15

40

25

0.022

0.307



60

70

10

0.018

0.138



185

255

70

0.069

1.310



255

275

20

VOID


Historic Mine Workings


275

300

25

0.062

0.741









P10-23

205

400

195

0.079

0.197



435

470

35

0.037

0.269



535

545

10

0.023

0.252









P10-24

0

20

<

20

0.019

0.369

Backfill from Surface Mining


20

130

110

0.018

0.438



315

330

15

0.026

0.069



395

450

55

0.023

0.341



620

640

20

0.039

0.506



675

690

15

0.010

0.120









P10-25

15

50

35

0.028

0.287

Backfill from Surface Mining


50

195

145

0.020

0.231









P10-36

275

300

25

0.171

1.412

Backfilled Historic Mine Workings


300

360

60

0.037

0.319



365

420

55

0.161

4.069



420

440

20

0.072

7.650

Backfilled Historic Mine Workings


440

455

15

VOID


Historic Mine Workings


455

460

5

0.047

3.900



460

475

15

VOID


Historic Mine Workings


475

480

5

0.034

0.892

Backfilled Historic Mine Workings


480

495

15

VOID


Historic Mine Workings


495

500

5

0.025

1.368

Backfilled Historic Mine Workings


500

540

40

VOID


Historic Mine Workings


540

570

30

0.020

0.915



570

595

25

VOID


Historic Mine Workings









Significant Drill intercepts in the East-Side / Donovan Hill Area








P10-14

0

40

40

0.068

1.243

Backfill from Surface Mining


75

160

85

0.066

0.859



320

420

100

0.072

0.362









P10-16

0

30

30

0.038

0.794

Backfill from Surface Mining


110

195

85

0.216

0.243



265

275

10

0.013

0.031



300

315

15

0.014

0.031



500

515

15

0.010

0.178









P10-20

0

30

30

0.065

1.132

Backfill from Surface Mining


45

180

135

0.037

0.242



225

235

10

0.014

0.105



330

355

25

0.019

0.048



375

410

35

0.011

0.048



430

470

40

0.022

0.424









P10-26

5

50

45

0.018

0.047



90

155

65

0.017

0.074



200

255

55

0.032

0.117



315

335

20

0.053

0.239



405

560

155

0.042

0.212









P10-28

60

70

10

0.019

0.074



190

205

15

0.018

0.298

Backfill from Surface Mining


235

330

95

0.027

0.223



345

510

165

0.033

0.396









P10-30

0

10

10

0.024

0.082



65

90

25

0.026

0.299



115

125

10

0.014

0.061



165

240

75

0.032

0.293



260

270

10

0.043

0.071



400

415

15

0.017

0.043



465

500

35

0.016

0.102









P10-51

0

40

40

0.075

0.917

Backfill from Surface Mining


40

50

10

0.031

0.516



105

115

10

0.013

0.174



170

305

135

0.043

0.601



325

375

50

0.012

0.647










Significant Drill intercepts in the Hartford / Billie the Kid Area








P10-13

No reportable intervals











P10-15

100

110

10

0.053

0.029









P10-39

0

15

15

0.022

0.066



105

115

10

0.017

0.245









P10-44

5

120

115

0.018

0.390









P10-45

0

10

10

0.021

0.133

Backfill from Surface Mining








P10-46

20

50

30

0.095

1.750

Backfill from Surface Mining


50

110

60

0.013

0.314









P10-48

10

70

60

0.019

0.827









P10-49

0

15

15

0.010

0.118

Backfill from Surface Mining


15

25

10

VOID


Historic Mine Workings


25

80

55

0.019

0.459









P10-50

70

85

15

0.026

0.280










Significant Drill intercepts in the Justice / Keystone Area








P10-17

145

155

10

0.038

0.119









P10-18

105

120

15

0.041

0.393



155

230

75

0.019

0.206



285

295

10

0.020

0.488



410

420

10

0.023

0.310









P10-27

0

15

15

0.009

0.177

Backfill from Surface Mining


445

455

10

0.010

0.050



475

525

50

0.046

0.155









P10-29

0

10

10

0.013

0.073

Backfill from Surface Mining


410

440

30

0.098

0.093



455

475

20

0.010

0.063

Backfilled Historic Mine Workings


475

485

10

0.022

0.093



585

595

10

0.051

0.034









P10-31

60

70

10

0.118

0.152









P10-32

0

35

35

0.014

2.366

Backfill from Surface Mining


35

45

10

0.068

0.479



670

705

35

0.048

0.075



755

785

30

0.036

0.069



865

880

15

0.020

0.041









P10-33

120

135

15

0.021

0.126



145

165

20

0.011

0.396









P10-34

85

105

20

0.031

0.223









P10-35

50

75

25

0.163

1.786









P10-37

135

150

15

0.112

0.256

Backfilled Historic Mine Workings


305

325

20

0.018

0.016



345

370

25

0.023

0.022









P10-38

95

125

30

0.012

0.128



320

335

15

0.014

0.058









P10-40

240

265

25

0.069

0.390









P10-41

500

520

20

0.173

0.558



815

830

15

0.018

0.231









P10-42

200

215

15

0.016

0.051



265

290

25

0.046

0.311









P10-43

155

160

5

0.180

0.414



160

170

10

0.119

0.170

Backfilled Historic Mine Workings








P10-47

470

480

10

0.028

0.036



635

650

15

0.125

0.253



665

675

10

0.022

0.038



700

715

15

0.029

0.375



780

800

20

0.014

0.228



825

835

10

0.016

0.141