BLM NSTC Rangeland Inventory 2001

TABLE 1. INVENTORY OF RANGELAND
State Acres Inventoried this Fiscal Year Using the Ecological Site Inventory (ESI) Method Total Acres Inventoried to Date Using the Ecological Site Inventory (ESI) Method and Soil Vegetation Inventory Method (SVIM)

Arizona
75,029
8,929,761

California
0
1,279,489

Colorado
331,699
4,531,711

Idaho
0
5,018,191

Montana/Dakotas
31,980
6,552,056

Nevada
190,840
23,652,490

New Mexico
0
9,686,003

Oregon/Washington
76,068
11,429,034

Utah
0
13,915,256

Wyoming
0
9,206,655

BLM Total
705,616
94,200,646

**TABLE 1. INVENTORY OF RANGELAND**
State	Acres Inventoried this Fiscal Year Using the Ecological Site Inventory (ESI) Method	Total Acres Inventoried to Date Using the Ecological Site Inventory (ESI) Method and Soil Vegetation Inventory Method (SVIM)
Arizona	75,029	8,929,761
California	0	1,279,489
Colorado	331,699	4,531,711
Idaho	0	5,018,191
Montana/Dakotas	31,980	6,552,056
Nevada	190,840	23,652,490
New Mexico	0	9,686,003
Oregon/Washington	76,068	11,429,034
Utah	0	13,915,256
Wyoming	0	9,206,655
BLM Total	705,616	94,200,646

TABLE 2. RANGELAND INVENTORY
NATIVE PUBLIC RANGELAND
A. DATA SOURCE: ECOLOGICAL SITE INVENTORY

State Total Federal
acres Potential natural community
acres Late seral
acres Mid seral
acres Early seral
acres Unclassified

Arizona
8,929,761
533,262 2,688,739 2,238,124 591,071 2,878,565

California
1,279,489
40,397 259,314 540,143 387,131 52,504

Colorado
4,531,711
172,173 829,206 1,379,421 860,507 1,290,404

Idaho
5,018,191
222,149 1,533,105 1,726,259 1,060,786 475,892

Montana/Dakotas
6,552,056
442,634 3,614,630 1,442,310 147,431 905,051

Nevada
23,652,490
557,792 5,231,956 8,473,156 2,223,507 7,166,079

New Mexico
9,686,003
389,694 2,935,872 4,002,947 2,141,667 215,823

Oregon/Washington
11,429,034
104,428 2,386,969 5,216,883 1,244,390 2,476,364

Utah
13,915,256
1,588,213 3,980,960 5,947,731 1,725,946 672,406

Wyoming
9,206,655
521,570 3,943,048 3,074,840 557,722 1,109,475

BLM Total
94,200,646
4,572,312 27,403,799 34,041,814 10,940,158 17,242,563

**TABLE 2. RANGELAND INVENTORY**
NATIVE PUBLIC RANGELAND
A. DATA SOURCE: ECOLOGICAL SITE INVENTORY
State	Total Federal acres	Potential natural community acres	Late seral acres	Mid seral acres	Early seral acres	Unclassified
Arizona	8,929,761	533,262	2,688,739	2,238,124	591,071	2,878,565
California	1,279,489	40,397	259,314	540,143	387,131	52,504
Colorado	4,531,711	172,173	829,206	1,379,421	860,507	1,290,404
Idaho	5,018,191	222,149	1,533,105	1,726,259	1,060,786	475,892
Montana/Dakotas	6,552,056	442,634	3,614,630	1,442,310	147,431	905,051
Nevada	23,652,490	557,792	5,231,956	8,473,156	2,223,507	7,166,079
New Mexico	9,686,003	389,694	2,935,872	4,002,947	2,141,667	215,823
Oregon/Washington	11,429,034	104,428	2,386,969	5,216,883	1,244,390	2,476,364
Utah	13,915,256	1,588,213	3,980,960	5,947,731	1,725,946	672,406
Wyoming	9,206,655	521,570	3,943,048	3,074,840	557,722	1,109,475
BLM Total	94,200,646	4,572,312	27,403,799	34,041,814	10,940,158	17,242,563

NATIVE PUBLIC RANGELAND
B. DATA SOURCE: OTHER INVENTORIES

State Total Federal
acres Excellent
acres Good
acres Fair
acres Poor
acres Unclassified

Arizona
910,130
238,509 331,498 163,601 3,149 173,373

California
4,139,940
107,636 1,055,344 1,961,676 855,785 159,499

Colorado
676,357
0 95,951 188,322 126,240 265,844

Idaho
4,142,705
51,340 545,666 1,231,120 1,989,468 325,111

Montana/Dakotas
1,460,246
107,946 760,696 399,851 20,073 171,680

Nevada
8,816,522
3,307 717,132 2,571,523 2,561,743 2,962,817

New Mexico
581,476
5,807 209,178 296,165 69,686 640

Oregon/Washington
706,622
35,564 523,463 109,971 37,624 0

Utah
4,791,655
889,913 1,303,277 1,183,706 641,465 773,294

Wyoming
2,977,789
130,915 1,775,013 747,618 42,509 281,734

BLM Total
29,203,442
1,570,937 7,317,218 8,853,553 6,347,742 5,113,992

NATIVE PUBLIC RANGELAND
B. DATA SOURCE: OTHER INVENTORIES
State	Total Federal acres	Excellent acres	Good acres	Fair acres	Poor acres	Unclassified
Arizona	910,130	238,509	331,498	163,601	3,149	173,373
California	4,139,940	107,636	1,055,344	1,961,676	855,785	159,499
Colorado	676,357	0	95,951	188,322	126,240	265,844
Idaho	4,142,705	51,340	545,666	1,231,120	1,989,468	325,111
Montana/Dakotas	1,460,246	107,946	760,696	399,851	20,073	171,680
Nevada	8,816,522	3,307	717,132	2,571,523	2,561,743	2,962,817
New Mexico	581,476	5,807	209,178	296,165	69,686	640
Oregon/Washington	706,622	35,564	523,463	109,971	37,624	0
Utah	4,791,655	889,913	1,303,277	1,183,706	641,465	773,294
Wyoming	2,977,789	130,915	1,775,013	747,618	42,509	281,734
BLM Total	29,203,442	1,570,937	7,317,218	8,853,553	6,347,742	5,113,992

NATIVE PUBLIC RANGELAND
C. DATA SOURCE: PROFESSIONAL JUDGEMENT
State Total Federal
acres Excellent
acres Good
acres Fair
acres Poor
acres Unclassified

Arizona
1,319,790
53,798 499,435 488,309 237,993 40,255

California
911,938
400 626,456 229,423 9,358 46,301

Colorado
2,831,096
223,965 1,103,434 1,027,510 300,888 175,299

Idaho
65,035
16,062 29,341 3,570 16,062 0

Montana/Dakotas
163,189
21,219 13,355 5,202 293 123,120

Nevada
11,993,590
1,598,235 5,144,512 4,230,918 826,944 192,981

New Mexico
1,820,693
18,680 535,776 818,827 120,942 326,468

Oregon/Washington
857,386
14,511 200,448 304,579 158,245 179,603

Utah
2,142,856
100,371 807,534 859,624 175,561 199,766

Wyoming
5,937,641
167,018 2,499,923 2,350,751 213,442 706,507

BLM Total
28,043,214
2,214,259 11,460,214 10,318,713 2,059,728 1,990,300

NATIVE PUBLIC RANGELAND
C. DATA SOURCE: PROFESSIONAL JUDGEMENT
State	Total Federal acres	Excellent acres	Good acres	Fair acres	Poor acres	Unclassified
Arizona	1,319,790	53,798	499,435	488,309	237,993	40,255
California	911,938	400	626,456	229,423	9,358	46,301
Colorado	2,831,096	223,965	1,103,434	1,027,510	300,888	175,299
Idaho	65,035	16,062	29,341	3,570	16,062	0
Montana/Dakotas	163,189	21,219	13,355	5,202	293	123,120
Nevada	11,993,590	1,598,235	5,144,512	4,230,918	826,944	192,981
New Mexico	1,820,693	18,680	535,776	818,827	120,942	326,468
Oregon/Washington	857,386	14,511	200,448	304,579	158,245	179,603
Utah	2,142,856	100,371	807,534	859,624	175,561	199,766
Wyoming	5,937,641	167,018	2,499,923	2,350,751	213,442	706,507
BLM Total	28,043,214	2,214,259	11,460,214	10,318,713	2,059,728	1,990,300

Category 1
125,221,649
6,917,486 40,639,026 45,108,145 13,042,395 19,514,597

NONNATIVE PUBLIC RANGELAND
D. DATA SOURCE: SEEDINGS
State Total Federal
acres Excellent
acres Good
acres Fair
acres Poor
acres Unclassified

Arizona
0
0 0 0 0 0

California
68,689
8,497 44,872 7,443 660 7,217

Colorado
243,933
19,462 94,367 75,004 40,702 14,398

Idaho
1,857,345
251,150 485,090 441,194 98,056 581,855

Montana/Dakotas
223,417
899 137,048 80,797 4,546 127

Nevada
938,752
185,770 250,825 306,521 97,702 97,934

New Mexico
3,385
120 0 0 3,265 0

Oregon/Washington
1,005,216
469,150 262,611 167,040 30,201 76,214

Utah
744,732
85,239 333,698 113,229 34,692 177,874

Wyoming
5,076
570 920 0 0 3,586

BLM Total
5,090,545
1,020,857 1,609,431 1,191,228 309,824 959,205

NONNATIVE PUBLIC RANGELAND
D. DATA SOURCE: SEEDINGS
State	Total Federal acres	Excellent acres	Good acres	Fair acres	Poor acres	Unclassified
Arizona	0	0	0	0	0	0
California	68,689	8,497	44,872	7,443	660	7,217
Colorado	243,933	19,462	94,367	75,004	40,702	14,398
Idaho	1,857,345	251,150	485,090	441,194	98,056	581,855
Montana/Dakotas	223,417	899	137,048	80,797	4,546	127
Nevada	938,752	185,770	250,825	306,521	97,702	97,934
New Mexico	3,385	120	0	0	3,265	0
Oregon/Washington	1,005,216	469,150	262,611	167,040	30,201	76,214
Utah	744,732	85,239	333,698	113,229	34,692	177,874
Wyoming	5,076	570	920	0	0	3,586
BLM Total	5,090,545	1,020,857	1,609,431	1,191,228	309,824	959,205

ANNUAL RANGELAND
E. DATA SOURCE: ANNUAL RANGELAND

State Total Federal
acres Excellent
acres Good
acres Fair
acres Poor
acres Unclassified

Arizona
648,265
56,122 237,113 321,148 33,882 0

California
1,460,870
13,846 1,025,220 210,949 9,500 201,355

Colorado
0
0 0 0 0 0

Idaho
764,052
0 0 7,830 81,325 674,897

Montana/Dakotas
0
0 0 0 0 0

Nevada
0
0 0 0 0 0

New Mexico
0
0 0 0 0 0

Oregon/Washington
0
0 0 0 0 0

Utah
0
0 0 0 0 0

Wyoming
0
0 0 0 0 0

BLM Total
2,873,187
69,968 1,262,333 539,927 124,707 876,252

ANNUAL RANGELAND
E. DATA SOURCE: ANNUAL RANGELAND
State	Total Federal acres	Excellent acres	Good acres	Fair acres	Poor acres	Unclassified
Arizona	648,265	56,122	237,113	321,148	33,882	0
California	1,460,870	13,846	1,025,220	210,949	9,500	201,355
Colorado	0	0	0	0	0	0
Idaho	764,052	0	0	7,830	81,325	674,897
Montana/Dakotas	0	0	0	0	0	0
Nevada	0	0	0	0	0	0
New Mexico	0	0	0	0	0	0
Oregon/Washington	0	0	0	0	0	0
Utah	0	0	0	0	0	0
Wyoming	0	0	0	0	0	0
BLM Total	2,873,187	69,968	1,262,333	539,927	124,707	876,252

TABLE 3. RANGELAND TREND
A. APPARENT TREND

State Total Federal
acres Up Static Down Undetermined

Arizona
6,306,023
1,447,128 3,800,788 131,142 926,965

California
7,075,866
778,648 4,245,002 343,283 1,708,933

Colorado
4,501,646
1,189,874 2,653,610 436,083 222,079

Idaho
9,439,794
1,528,032 3,934,425 645,302 3,332,035

Montana/Dakotas
6,174,794
1,045,107 3,802,348 338,258 989,081

Nevada
26,025,019
3,595,594 14,999,608 6,079,350 1,350,467

New Mexico
1,589,058
221,468 703,396 213,597 450,597

Oregon/Washington
5,139,280
1,142,739 2,735,698 257,768 1,003,075

Utah
1,181,142
1,112 35,183 1,702 1,143,145

Wyoming
15,991,324
2,334,514 7,971,766 2,009,911 3,675,133

BLM Total
83,423,946
13,284,216 44,881,824 10,456,396 14,801,510

**TABLE 3. RANGELAND TREND**
A. APPARENT TREND
State	Total Federal acres	Up	Static	Down	Undetermined
Arizona	6,306,023	1,447,128	3,800,788	131,142	926,965
California	7,075,866	778,648	4,245,002	343,283	1,708,933
Colorado	4,501,646	1,189,874	2,653,610	436,083	222,079
Idaho	9,439,794	1,528,032	3,934,425	645,302	3,332,035
Montana/Dakotas	6,174,794	1,045,107	3,802,348	338,258	989,081
Nevada	26,025,019	3,595,594	14,999,608	6,079,350	1,350,467
New Mexico	1,589,058	221,468	703,396	213,597	450,597
Oregon/Washington	5,139,280	1,142,739	2,735,698	257,768	1,003,075
Utah	1,181,142	1,112	35,183	1,702	1,143,145
Wyoming	15,991,324	2,334,514	7,971,766	2,009,911	3,675,133
BLM Total	83,423,946	13,284,216	44,881,824	10,456,396	14,801,510

B. MONITORED TREND

State Total Federal
acres Up Static Down Undetermined

Arizona
5,428,762
1,946,790 2,122,132 1,180,463 179,377

California
785,060
470,511 307,584 6,965 0

Colorado
3,808,413
1,096,862 1,198,242 331,910 1,181,399

Idaho
2,407,534
380,624 1,321,981 208,423 496,506

Montana/Dakotas
2,382,499
938,068 1,247,667 89,142 107,622

Nevada
15,717,914
1,093,846 2,799,608 1,752,584 10,071,876

New Mexico
5,636,438
2,402,448 3,093,858 140,132 0

Oregon/Washington
8,858,978
3,020,568 5,251,643 586,767 0

Utah
21,198,725
5,608,388 12,471,588 3,094,361 24,388

Wyoming
2,067,461
970,629 858,537 197,359 40,936

BLM Total
68,291,784
17,928,734 30,672,840 7,588,106 12,102,104

B. MONITORED TREND
State	Total Federal acres	Up	Static	Down	Undetermined
Arizona	5,428,762	1,946,790	2,122,132	1,180,463	179,377
California	785,060	470,511	307,584	6,965	0
Colorado	3,808,413	1,096,862	1,198,242	331,910	1,181,399
Idaho	2,407,534	380,624	1,321,981	208,423	496,506
Montana/Dakotas	2,382,499	938,068	1,247,667	89,142	107,622
Nevada	15,717,914	1,093,846	2,799,608	1,752,584	10,071,876
New Mexico	5,636,438	2,402,448	3,093,858	140,132	0
Oregon/Washington	8,858,978	3,020,568	5,251,643	586,767	0
Utah	21,198,725	5,608,388	12,471,588	3,094,361	24,388
Wyoming	2,067,461	970,629	858,537	197,359	40,936
BLM Total	68,291,784	17,928,734	30,672,840	7,588,106	12,102,104

TABLE 4. ALLOTMENT CATEGORIZATION

. Total Category I Category M Category C Uncategorized

State Allot. # Acres Allot. # Acres Allot. # Acres Allot. # Acres Allot. # Acres

Arizona 847 11,925,348
211
4,850,666 138 3,415,679 498 3,659,003 0 0

California 696 7,860,926
179
5,373,821 162 1,277,985 337 1,144,234 18 64,886

Colorado 2,382 8,278,857
679
5,719,883 307 841,969 1,384 1,152,910 12 564,095

Idaho 2,327 11,847,328
874
6,646,001 579 2,617,412 777 492,352 97 2,091,563

Montana/Dakotas 5,323 8,370,226
716
3,439,235 1,543 3,609,438 2,884 1,229,623 180 91,930

Nevada 790 45,715,363
272
28,431,582 267 8,983,481 251 7,641,099 0 659,201

New Mexico 1,941 11,839,939
459
6,323,953 848 4,396,680 634 1,091,864 0 27,442

Oregon/Washington 2,070 13,998,258
431
8,784,536 389 4,206,434 1,250 913,701 0 93,587

Utah 1,512 22,615,779
449
12,673,597 451 7,402,316 582 1,918,326 30 621,540

Wyoming 3,450 18,151,903
831
10,902,307 818 5,051,730 1,754 1,721,044 47 476,822

BLM Total 21,338 160,603,927
5,101
93,145,581 5,502 41,803,124 10,351 20,964,156 384 4,691,066

**TABLE 4. ALLOTMENT CATEGORIZATION**
.	Total	Category I	Category M	Category C	Uncategorized
State	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres
Arizona	847	11,925,348	211	4,850,666	138	3,415,679	498	3,659,003	0	0
California	696	7,860,926	179	5,373,821	162	1,277,985	337	1,144,234	18	64,886
Colorado	2,382	8,278,857	679	5,719,883	307	841,969	1,384	1,152,910	12	564,095
Idaho	2,327	11,847,328	874	6,646,001	579	2,617,412	777	492,352	97	2,091,563
Montana/Dakotas	5,323	8,370,226	716	3,439,235	1,543	3,609,438	2,884	1,229,623	180	91,930
Nevada	790	45,715,363	272	28,431,582	267	8,983,481	251	7,641,099	0	659,201
New Mexico	1,941	11,839,939	459	6,323,953	848	4,396,680	634	1,091,864	0	27,442
Oregon/Washington	2,070	13,998,258	431	8,784,536	389	4,206,434	1,250	913,701	0	93,587
Utah	1,512	22,615,779	449	12,673,597	451	7,402,316	582	1,918,326	30	621,540
Wyoming	3,450	18,151,903	831	10,902,307	818	5,051,730	1,754	1,721,044	47	476,822
BLM Total	21,338	160,603,927	5,101	93,145,581	5,502	41,803,124	10,351	20,964,156	384	4,691,066

TABLE 5. NUMBER OF ACRES AND ALLOTMENTS MONITORED
A. NEW MONITORING STUDIES ESTABLISHED DURING THE REPORTING YEAR

. Total Category I Category M Category C Uncategorized

State Allot. # Acres Allot. # Acres Allot. # Acres Allot. # Acres Allot. # Acres

Arizona 20 141,769
1
2,278 2 54,476 17 85,015 0 0

California 6 48,824
1
5,860 3 39,450 2 3,514 0 0

Colorado 85 299,454
36
242,479 6 11,496 43 45,479 0 0

Idaho 72 785,439
42
701,901 14 79,317 16 4,221 0 0

Montana/Dakotas 108 92,814
4
39,677 48 34,585 56 18,552 0 0

Nevada 46 10,593,633
20
4,696,623 13 787,137 13 5,109,873 0 0

New Mexico 1 26,212
1
26,212 0 0 0 0 0 0

Oregon/Washington 18 325,272
7
301,129 1 17,315 10 6,828 0 0

Utah 4 210,713
2
205,149 1 3,124 1 2,440 0 0

Wyoming 19 255,869
2
221,871 14 31,978 3 2,020 0 0

BLM Total 379 12,779,999
116
6,443,179 102 1,058,878 161 5,277,942 0 0

**TABLE 5. NUMBER OF ACRES AND ALLOTMENTS MONITORED**
A. NEW MONITORING STUDIES ESTABLISHED DURING THE REPORTING YEAR
.	Total	Category I	Category M	Category C	Uncategorized
State	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres
Arizona	20	141,769	1	2,278	2	54,476	17	85,015	0	0
California	6	48,824	1	5,860	3	39,450	2	3,514	0	0
Colorado	85	299,454	36	242,479	6	11,496	43	45,479	0	0
Idaho	72	785,439	42	701,901	14	79,317	16	4,221	0	0
Montana/Dakotas	108	92,814	4	39,677	48	34,585	56	18,552	0	0
Nevada	46	10,593,633	20	4,696,623	13	787,137	13	5,109,873	0	0
New Mexico	1	26,212	1	26,212	0	0	0	0	0	0
Oregon/Washington	18	325,272	7	301,129	1	17,315	10	6,828	0	0
Utah	4	210,713	2	205,149	1	3,124	1	2,440	0	0
Wyoming	19	255,869	2	221,871	14	31,978	3	2,020	0	0
BLM Total	379	12,779,999	116	6,443,179	102	1,058,878	161	5,277,942	0	0

B. TOTAL ESTABLISHED MONITORING STUDIES

. Total Category I Category M Category C Uncategorized

State Allot. # Acres Allot. # Acres Allot. # Acres Allot. # Acres Allot. # Acres

Arizona 434 8,603,354
193
4,488,929 114 3,501,771 127 612,654 0 0

California 337 6,836,117
184
5,490,763 106 926,992 47 418,362 0 0

Colorado 1,290 7,168,651
649
5,692,372 272 783,946 358 643,397 11 48,936

Idaho 994 9,858,530
547
6,221,095 217 1,648,016 175 145,344 55 1,844,075

Montana/Dakotas 2,404 5,623,802
628
2,528,141 1,018 2,673,861 750 402,552 8 19,248

Nevada 685 42,554,556
266
27,867,110 261 8,948,252 158 5,739,194 0 0

New Mexico 1,500 10,557,335
432
5,762,249 634 4,143,691 434 651,395 0 0

Oregon/Washington 1,394 13,198,457
433
8,726,330 366 4,143,113 595 329,014 0 0

Utah 1,386 22,205,644
445
12,675,721 442 7,576,517 487 1,705,971 12 247,435

Wyoming 1,604 15,314,593
699
10,556,649 640 4,251,139 264 506,685 1 120

BLM Total 12,028 141,921,039
4,476
90,009,359 4,070 38,597,298 3,395 11,154,568 87 2,159,814

B. TOTAL ESTABLISHED MONITORING STUDIES
.	Total	Category I	Category M	Category C	Uncategorized
State	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres	Allot. #	Acres
Arizona	434	8,603,354	193	4,488,929	114	3,501,771	127	612,654	0	0
California	337	6,836,117	184	5,490,763	106	926,992	47	418,362	0	0
Colorado	1,290	7,168,651	649	5,692,372	272	783,946	358	643,397	11	48,936
Idaho	994	9,858,530	547	6,221,095	217	1,648,016	175	145,344	55	1,844,075
Montana/Dakotas	2,404	5,623,802	628	2,528,141	1,018	2,673,861	750	402,552	8	19,248
Nevada	685	42,554,556	266	27,867,110	261	8,948,252	158	5,739,194	0	0
New Mexico	1,500	10,557,335	432	5,762,249	634	4,143,691	434	651,395	0	0
Oregon/Washington	1,394	13,198,457	433	8,726,330	366	4,143,113	595	329,014	0	0
Utah	1,386	22,205,644	445	12,675,721	442	7,576,517	487	1,705,971	12	247,435
Wyoming	1,604	15,314,593	699	10,556,649	640	4,251,139	264	506,685	1	120
BLM Total	12,028	141,921,039	4,476	90,009,359	4,070	38,597,298	3,395	11,154,568	87	2,159,814

C. ALLOTMENTS FOR WHICH MONITORING DATA WAS COLLECTED DURING THE REPORTING YEAR

. Total Category I Category M Category C Uncategorized

State Allot. # Acres Allot. # Acres Allot. #