Metalline Reports on Eastern Extension of Area A Silver (+Zinc+Lead) Resource Area at the Sierra Mojada Project, Coahuila, Mexico

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Dec 15, 2010, 09:05 ET

GREENWOOD VILLAGE, Colo., Dec. 15, 2010 /PRNewswire-FirstCall/ -- Metalline Mining Company (Amex: MMG; TSX: MMZ) is pleased to announce further results from the evaluation of earlier drilling programs at the shallow silver-zinc resource area ("Area A") at the Sierra Mojada Project located in Coahuila, Mexico. Results reported below are at a 30 gpt Ag or 1% Zn external cut-off.

Metalline reports a total of 340 drill holes, most of them short underground "long" holes drilled in 2006 from access within the Area A silver (+zinc+lead) resource, that average 13 meters thick above a 30 gpt Ag cut-off, averaging 110 gpt Ag, 1.18% Zn, and 0.44% Pb. Most of these holes are only 2-22 meters long, and drill only a portion of the true thickness of the resource, which averages 25-30 meters thick in the area between sections 631700E and 632550E. This portion of the resource may be potentially minable from either underground or by open pit. If mineable by open pit the stripping to access this portion of the Area A silver(+zinc+lead) resource will expose the deeper and larger zinc oxide deposit and greatly reduce the stripping required to fully access the zinc oxide deposit.


Summary Drill Intercepts
Far East Area A Silver-Zinc Resource
Section	No. Holes	Ave. Thick. (m)	Ag gpt	Zn%	Pb%

631700E	15	15	41	0.86	0.39
631800E	7	11	131	2.03	2.27
631850E	8	10	136	4.62	2.82
631900E	6	11	69	4.76	1.94
631950E	12	13	46	1.51	0.55
632100E	11	17	51	1.00	0.27
632200E	43	16	117	0.74	0.20
632250E	76	16	130	1.11	0.25
632300E	19	12	120	0.39	0.40
632350E	32	13	56	0.77	0.23
632400E	28	9	90	0.83	0.33
632450E	46	9	119	0.67	0.23
632500E	24	15	131	2.11	0.68
632550E	13	12	139	1.21	0.61

Weighted Averages	340	13	110	1.18	0.44

Sections 631700E, through 632550E compliment assays sections that were reported earlier. Metalline has now reported assays sections covering the area between sections 629600E and 632550E on the Area A silver(+zinc+lead) resource, a distance of three kilometers, with a few intervening sections remaining to be compiled. The results from these remaining sections will be reported as compilation by section is completed. The continuity and potential minability of the silver zone on these sections is demonstrated on the individual graphic sections and the composite panel section diagrams posted to the web site at http://www.metallinemining.com/s/DH_Sections.asp.

All of the sampling and sample preparation for assays reported herein have been done on site under supervision by Metalline personnel and all those samples were shipped directly to ALS-Chemex for further sample preparation and assaying with insertion of appropriate standards and blanks. A third party review of the Company's QA/QC program vetted the Company's sample preparation and sample handling protocols for the previous core drilling and channel sampling programs, but did not specifically address sampling from the 2006 long hole drilling program. A surface core drilling program is planned for 2011 to test and confirm the geometry and grade of the resource area reported herein.

Greg Hahn, Interim President and CEO, a Certified Professional Geologist, is the Qualified Person responsible for reviewing and reporting the contents of this press release and assuring the results reported herein are in accordance with NI 43-101.

Detailed drill results by section are attached below:


Area A Far East End Silver Intercepts

631700E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
D1040709	123	137	14	55	1.57	2.42
D1040714	105	114.6	9.6	33	3.1	1.09
D1040703	138	154	16	25	0.15	0.05
R998	95	121	26	63	1.19	0.28
R999	132	148	16	27	0.05	0.04
L306120859	0	19	19	20	0.44	0.04
L306120960	0	15	15	23	0.13	0.04
L306121102	0	12	12	13	0.15	0.05
L306121407	0	16	16	33	0.41	0.1
L207051719	0	14	14	57	2.83	1.18
L207050206	0	15	15	27	0.38	0.07
L207051718	0	11	11	44	1.62	0.61
L207051516	0	16	16	38	0.47	0.04
L207042702	0	20	20	72	0.23	0.13
L306120901	0	8	8	68	1.91	0.64

Average of 15 holes			15.2	41	0.86	0.39

631800E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
R9910	99	104	5	109	3.86	3.37
L306122011	0	13	13	32	5.26	0.67
L306122012	0	7	7	1017	1.33	0.67
L306122013	0	13	13	18	2.19	0.82
L306122014	0	12	12	125	1.3	0.6
L307010519	0	16	16	10	0.89	8
L307010520	0	12	12	21	0.25	0.09

Average of 7 holes			11.1	131	2.03	2.27

631850E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L207020745	0	4	4	427	7.44	1.77
L207020746	0	11	11	138	3.8	1.95
L207020847	0	10	10	143	5.79	2.18
L207020848	0	10	10	124	1.18	5.99
L207020849	0	13	13	30	0.17	1.41
L207020643	0	10	10	110	1.37	1.63
L207020644	0	10	10	169	10.47	4.43
L207020342	0	9	9	154	10.45	3.1

Average of 8 holes			9.6	136	4.62	2.82

631900E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L107020212	0	13	13	71	13.16	1.21
L107020213	0	10	10	74	3.4	0.04
L107020214	0	7	7	80	11.14	0.06
L207021050	0	10	10	31	0.72	1.03
L207021051	0	13	13	90	1.38	5.95
L207020252	0	13	13	66	0.44	1.81

Average of 6 holes			11.0	69	4.76	1.94

631950E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L107013010	0	16	16	26	1.34	0.41
L107013111	0	12	12	26	1.02	0.2
L107012907	0	14	14	13	0.91	0.27
L107011899	0	15	15	45	0.13	0.24
L107013009	0	7	7	55	5.44	1.24
L107013008	0	17	17	30	4.81	0.81
L107012202	0	12	12	124	1.21	0.32
L107012001	0	4	4	50	1.04	0.29
L1070120100	0	7	7	47	0.94	0.78
L107011696	0	15	15	28	0.8	0.62
L107011595	0	16	16	27	0.95	0.67
L07011697	0	15	15	104	0.43	0.87

Average of 12 holes			12.5	46	1.51	0.55

632100E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
D2040706	176	196	20	106	1.51	0.43
L106120874	0	19	19	56	1.35	0.35
L106120773	0	19	19	84	5.08	1.19
L106121177	0	19	19	61	0.4	0.13
L106120469	0	19	19	22	0.09	0.02
L106112360	0	19	19	21	0.13	0.04
L106112359	0	19	19	23	0.05	0.02
L106112461	0	4	4	52	0.14	0.04
L060112563	0	19	19	32	0.83	0.23
L106112764	0	11	11	74	0.4	0.08
L106112765	0	19	19	33	0.08	0.18

Average of 11 holes			17.0	51	1.00	0.27

632200E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L106121178	0	19	19	96	2.94	0.57
L206100438	0	20	20	86	0.05	0.01
L206110470	0	19	19	170	0.2	0.07
L206100539	0	6	6	914	0.13	0.01
L206101648	0	19	19	102	0.04	0.03
L206102559	0	5	5	225	0.05	0.02
L201102458	0	17	17	74	0.03	0.01
L206110268	0	18	18	47	0.12	0.03
L206110167	0	17	17	101	0.11	0.04
L206102357	0	21	21	182	0.11	0.02
L206101247	0	17	17	88	0.03	0.01
L206102662	0	19	19	170	0.21	0.22
L206100437	0	16	16	443	0.02	0.02
L206102661	0	15	15	334	0.27	0.11
L206100336	0	19	19	261	0.02	0.01
L206100641	0	13	13	343	5.23	1.3
L306101405	0	19	19	27	0.38	0.05
L306100958	0	13	13	33	0.04	0.01
L306101911	0	13	13	31	0.19	0.05
L306101060	0	8	8	40	0.15	0.05
L306100556	0	15	15	86	2.84	0.7
L306100959	0	19	19	28	0.07	0.03
L306101203	0	15	15	126	6.41	1.91
L306092849	0	18	18	14	0.49	0.09
L306100454	0	18	18	36	1.03	0.24
L206101649	0	21	21	127	0.51	0.15
L206102056	0	16	16	61	0.66	0.07
L206102055	0	21	21	56	0.8	0.22
L206100743	0	18	18	15	0.13	0.06
L206101045	0	15	15	44	0.97	0.03
L306111739	0	16	16	34	0.08	0.02
L306110425	8	12	4	31	0.08	0.01
L306110829	6	18	12	33	0.1	0.03
L306112243	0	18	18	30	0.99	0.34
L309112142	0	17	17	26	0.42	0.11
L206100944	0	5	5	567	0.1	0.03
L306101304	0	19	19	62	1.89	0.56
L306111738	0	19	19	35	0.2	0.05
L306111840	0	19	19	163	0.79	0.21
L306100555	0	18	18	58	2.26	0.6
L306100757	0	9	9	44	0.06	0.01
D4040911	134	149	15	22	0.03	0.04
R991	164	186	22	319	0.08	0.03

Average of 43 holes			15.9	117	0.74	0.20

632250E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L206110872	0	19	19	62	0.08	0.03
L206110470	0	13	13	170	0.2	0.07
L206110974	0	16	16	34	0.1	0.05
L2061111075	0	19	19	39	0.16	0.07
L206110268	0	18	18	47	0.12	0.03
L206110167	0	17	17	101	0.11	0.04
L206101146	0	21	21	1512	3.07	0.07
L206092630	0	15	15	86	1.16	0.24
L306120458	0	10	10	100	0.06	0.02
L306120156	0	18	18	42	0.07	0.07
L306113054	0	18	18	397	0.16	0.58
L306113055	0	19	19	21	0.02	0.06
L306112953	0	19	19	163	0.03	0.23
L306111133	0	19	19	30	0.07	0.02
L306111032	0	19	19	44	0.11	0.04
L306111031	0	18	18	47	0.65	0.04
L306110930	0	19	19	60	0.33	0.08
L306110829	0	18	18	33	0.1	0.03
L306110828	0	19	19	49	0.12	0.04
L306120457	0	8	8	156	0.06	0.04
L306120458	0	10	10	100	0.06	0.02
L206111176	0	16	16	26	0.14	0.05
L206111075	0	19	19	39	0.16	0.07
L206110974	0	16	16	34	0.1	0.05
L206220873	0	19	19	31	0.16	0.07
L206220872	0	20	20	62	0.08	0.07
L206092630	0	15	15	86	1.16	0.24
L106111757	0	15	15	145	0.44	0.16
L106111758	0	10	10	300	3.47	2.31
L106111656	0	18	18	60	0.74	0.4
L106111555	0	19	19	126	1.13	0.43
L106111454	0	15	15	26	0.68	0.16
L106111453	0	19	19	96	1.04	0.31
L106111352	0	17	17	70	0.63	0.2
L106111351	0	19	19	79	1.01	0.34
L106111050	0	17	17	50	1.13	0.41
L106110949	0	19	19	112	0.56	0.28
L106110948	0	17	17	123	0.5	0.21
L106110847	0	19	19	103	0.7	0.23
L106110846	0	19	19	476	0.69	0.43
L106110745	0	12	12	160	0.64	0.24
L106110644	0	17	17	360	1.4	1.16
L106110643	0	9	9	128	1.03	0.67
L106110642	0	7	7	109	0.55	0.24
L106110641	0	19	19	83	0.77	0.26
L106110340	0	17	17	177	0.65	0.49
L106110239	0	19	19	128	0.6	0.31
L106110138	0	17	17	98	0.61	0.39
L106110137	0	8	8	348	1.97	0.55
L106101622	0	18	18	23	0.66	0.41
L106101621	0	16	16	80	0.49	0.36
L106101420	0	19	19	58	0.62	0.26
L106101319	0	19	19	49	0.49	0.29
L106100614	0	17	17	22	1.18	0.46
L106100513	0	19	19	25	1.31	0.47
L106100512	0	12	12	93	1.74	0.92
L106100411	0	12	12	105	2.32	1.78
L106100410	0	17	17	65	0.41	0.76
L106100309	0	19	19	119	0.29	0.5
L106100208	0	6	6	169	0.98	0.36
L106100207	0	11	11	336	0.69	0.61
L106093006	0	5	5	258	0.79	0.47
L106093005	0	15	15	203	0.48	0.2
L106092904	0	15	15	128	0.23	0.08
L106092903	0	15	15	123	0.1	0.02
L106092802	0	8	8	100	0.25	0.03
L106092801	0	11	11	102	0.38	0.05
L1060927281	0	15	15	54	0.04	0.01
L1060926280	0	19	19	97	0.11	0.03
L1060926279	0	15	15	109	0.05	0.02
L1060925278	0	17	17	172	0.06	0.01
L1060925277	0	13	13	147	0.08	0.03
L1060922276	0	15	15	67	0.19	0.05
L1060921275	0	14	14	170	0.1	0.03
L1060921274	0	16	16	97	0.09	0.04
R992	172	195	23	150	0.84	0.01

Average of 76 holes			15.9	130	1.11	0.25

632300E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
R994	180	184	4	52	0.25	0.02
R9913	160	166	6	36	0.16	0.07
	203	207	4	46	0.04	0.01
R9914	192	219	27	76	0.06	0.01
R9915	177	194	17	489	1.51	2.57
L1060629231	2	20	18	27	0.02	0.01
L1060630232	0	5	5	17	0.02	0.01
L1060701233	2	13	11	53	0.04	0.02
L1060701235	2	6	4	45	0.04	0.02
L106101823	2	10	8	32	0.52	0.62
L106101824	0	14	14	22	0.51	0.55
L106101926	0	8	8	67	1.42	1.41
L106102027	4	19	15	45	0.72	0.38
L106102530	0	8	8	33	0.52	0.24
L106102631	0	8	8	108	0.15	0.06
L106102733	0	19	19	369	0.07	0.02
L106102734	0	19	19	88	0.15	0.07
L107103035	0	19	19	76	0.4	0.31
L106103036	0	16	16	83	0.28	0.37
NSM16	47.4	55.6	8.2	62	0.24	0.02

Average of 19 holes			11.9	120	0.39	0.40

632350E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
R9912	156	186	30	109	0.26	0.1
R9916	139	176	37	69	0.74	0.32
D2041022	133	175	42	58	0.73	0.23
D2041025	77	92	15	49	2.11	0.08
L1060614220	3	23	20	109	0.09	0.02
L1060615221	0	7	7	20	0.07	0.01
L1060616222	5	19	14	63	0.07	0.01
L1060619223	3	23	20	54	0.06	0.01
L1060622225	1	12	11	27	0.09	0.01
L1060627228	2	16	14	63	0.13	0.03
L306060833	13	19	6	71	0.15	0.05
L306060834	4	18	14	59	0.15	0.07
L306060935	0	19	19	21	1.26	0.04
L306061036	14	18	4	46	0.5	0.02
L306061237	0	6	6	29	1.13	0.06
L306061338	0	13	13	41	0.56	0.05
L306061539	0	3	3	37	0.54	0.13
L306061540	0	4	4	39	3.07	0.08
L306061641	3	17	14	43	0.42	0.05
L306061742	4	18	14	88	0.44	0.09
L306081615	1	18	17	43	1.53	0.88
L306081716	0	7	7	82	2.51	2.32
L306081717	2	19	17	57	1.59	0.4
L306081818	6	10	4	43	2.67	0.84
L306081919	13	19	6	35	3.25	0.72
L306082120	9	13	4	38	2.34	0.79
L306082421	7	11	4	42	0.46	0.2
L306082522	2	15	13	29	0.64	0.33
L306082623	0	9	9	26	0.86	0.39
L306082924	0	19	19	30	0.47	0.28
L306082925	4	19	15	26	0.83	0.23
L306082926	0	7	7	38	1.01	0.2

Average of 32 holes			13.4	56	0.77	0.23

632400E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L1060807242	16	21	5	133	0.35	0.03
L1060808243	10	14	4	101	1.71	0.32
L1060810245	6	14	8	79	0.44	0.22
L1060810246	4	10	6	58	0.47	0.29
L2060811894	2	17	15	121	0.09	0.1
L2060811995	0	16	16	132	0.14	0.1
L2060812196	0	15	15	54	0.3	0.1
L2060812297	0	16	16	94	0.35	0.17
L206090207	7	15	8	27	0.17	0.05
L206090408	6	16	10	76	0.18	0.06
L306052318	3	17	14	45	0.41	0.14
L306052520	7	19	12	62	0.33	0.12
L306052622	14	18	4	54	0.17	0.05
L306052723	4	7	3	51	1.81	0.15
L306052924	6	18	12	140	0.55	0.22
L306053125	13	19	6	207	1.52	0.36
L306053126	11	17	6	227	0.3	0.1
L306053127	9	19	10	67	0.13	0.03
L306060530	15	19	4	103	0.57	0.28
L306083127	7	16	9	76	0.88	0.35
L306090429	0	5	5	57	3.06	0.74
L306090531	2	8	6	51	1.28	0.36
L306090532	0	13	13	192	2.81	1.29
L306090633	0	19	19	62	1.86	0.98
L306090734	0	9	9	57	1.33	0.62
L306091136	0	8	8	46	1.31	0.5
L306091339	2	11	9	35	1.26	0.25
L306091442	0	6	6	130	1.46	0.62

Average of 28 holes			9.2	90	0.83	0.33

632450E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L206060764	4	14	10	26	0.12	0.04
L206061265	2	14	12	75	1.67	0.41
L206061366	10	13	3	46	1.03	0.27
L206061467	6	10	4	60	1.33	0.28
L206061468	5	7	2	93	1.05	0.25
L206061569	4	6	2	35	1.28	0.18
L206061670	0	5	5	218	1.98	1.77
L206061671	0	20	20	39	1.08	0.14
L206061973	11	17	6	98	0.3	0.08
L206062074	7	12	5	51	0.18	0.05
L206062275	8	13	5	50	0.47	0.08
L206062276	12	16	4	30	0.43	0.13
L206070884	6	14	8	39	0.13	0.08
L206080785	0	11	11	56	0.12	0.04
L206080886	5	14	9	37	0.59	0.07
L206081088	8	12	4	193	0.1	0.05
L206081189	2	11	9	146	0.12	0.05
L206081592	0	10	10	133	0.12	0.12
L206081793	0	14	14	98	0.33	0.16
L207082298	0	20	20	184	0.32	0.15
L207082499	0	16	16	70	0.25	0.16
L207082903	10	12	2	106	0.33	0.09
L306050601	0	12	12	134	0.18	0.05
L306050602	0	7	7	152	0.51	0.27
L306050803	0	4	4	64	0.06	0.05
L306050804	0	7	7	62	0.4	0.08
L306051007	0	11	11	76	1.4	0.48
L306051108	0	7	7	37	1.32	0.47
L306051310	6	18	12	122	0.76	0.32
L306051511	0	1	1	162	0.52	0.4
L306051714	0	9	9	36	0.32	0.06
L306062043	3	14	11	211	0.74	0.4
L306062044	0	8	8	103	1.99	0.46
L306062246	0	11	11	78	1.38	0.31
L306062650	0	14	14	54	2.5	0.33
L306062852	1	6	5	84	0.63	0.4
L306062953	0	6	6	84	0.6	0.46
L306070355	0	7	7	395	0.2	0.06
L306070456	0	18	18	230	0.79	0.48
L306070658	1	6	5	213	0.23	0.12
L306072904	0	7	7	59	2.33	1.24
L306073105	0	19	19	242	0.48	0.17
L306080106	0	12	12	35	0.51	0.27
L306080911	0	19	19	227	0.06	0.02
L306081012	0	8	8	361	0.09	0.02

Average of 46 holes			8.9	119	0.67	0.23

632500E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L1060821253	0	18	18	171	0.15	0.08
L1060821254	0	14	14	93	1.95	0.84
L1060824257	0	16	16	251	5.43	4.04
L1060824258	0	19	19	69	0.97	0.71
L1060824259	0	21	21	191	3.09	1.89
L1060831262	13	17	4	47	0.06	0.03
L206050948	0	22	22	113	0.32	0.11
L206051049	0	15	15	63	4.16	0.23
L206051150	0	14	14	62	1.55	0.39
L206051151	0	13	13	42	1.28	0.17
L206051654	0	14	14	75	3.02	0.22
L206051755	0	14	14	46	1.69	0.12
L206052656	0	9	9	75	2.61	0.53
L206052757	0	12	12	56	1.05	0.47
L206053058	0	20	20	30	1.06	0.44
L206060562	0	8	8	29	1.33	0.91
L206090914	0	12	12	49	6.52	2.07
L206091116	0	12	12	43	7	0.7
L206091217	0	21	21	124	1.61	0.28
L206091318	0	21	21	57	1.58	0.39
L206091319	0	16	16	81	1.14	0.41
L206091420	0	17	17	451	1.88	0.48
L206091521	0	21	21	339	1.39	0.29
L206091522	0	9	9	409	1.46	0.33

Average of 24 holes			15.1	131	2.11	0.68

632550E

Drill Hole	From	To	Thick (m)	Ag gpt	Zn%	Pb%
L1060518191	12	21	9	75	0.32	0.1
L1060526200	17	21	4	71	0.22	0.07
L1060601205	15	21	6	74	0.34	0.09
L1060606213	0	5	5	59	2.14	0.18
L1060906265	0	12	12	292	1	0.59
L1060906266	0	21	21	91	1.52	0.29
L1060908267	0	14	14	94	0.55	0.28
L1060909268	0	16	16	323	3.38	2.1
L1060612269	0	12	12	82	1.47	1.2
L1060912270	0	19	19	193	1.36	0.67
L1060914271	0	10	10	194	0.63	0.62
L1060914272	0	14	14	54	0.59	0.24
L1060915273	0	14	14	50	0.66	0.37

Average of 13 holes			12.0	139	1.21	0.61

About Metalline Mining Company

Metalline Mining Company is focused on the acquisition, exploration and development of mineral properties. Metalline currently owns mineral concessions in the municipality of Sierra Mojada, Coahuila, Mexico and holds licenses in Gabon, Africa. Metalline conducts its operations in Mexico through its wholly owned Mexican subsidiaries, Minera Metalin S.A. de C.V. and Contratistas de Sierra Mojada S.A. de C.V. To obtain more information on Metalline Mining Company, visit the Company's web site (www.metallinemining.com).

Forward-Looking Statements

This news release contains forward-looking statements regarding future events and Metalline's future results that are subject to the safe harbors created under the Securities Act of 1933 (the "Securities Act") and the Securities Exchange Act of 1934 (the "Exchange Act") and constitute "forward looking information" within the meaning of Canadian securities laws. These statements include statements about Metalline's planned drilling program and are based on material factors and assumptions including Metalline's management's current expectations, estimates, forecasts, and projections about the industry in which Metalline operates and the beliefs and assumptions of Metalline's management. Words such as "expects," "anticipates," "targets," "goals," "projects," "intends," "plans," "believes," "seeks," "estimates," "continues," "may," variations of such words, and similar expressions, are intended to identify such forward-looking statements. In addition, any statements that refer to projections of Metalline's future financial performance, Metalline's anticipated growth and potentials in its business and other characterizations of future events or circumstances are forward-looking statements. Readers are cautioned that these forward-looking statements are only predictions and are subject to risks, uncertainties, and assumptions that are difficult to predict, including the risk that Metalline's drill program may not be successful or result in the discovery of commercially mineable deposits of ore and those risks identified in Metalline's Annual Report on Form 10-K for the fiscal year ended October 31, 2009 under "Risk Factors, " and in subsequent reports filed with the Securities and Exchange Commission. Therefore, actual results may differ materially and adversely from those expressed in any forward-looking statements. Metalline undertakes no obligation to revise or update any forward-looking statements for any reason.

SOURCE Metalline Mining Company