National Monuments Detail Table

State
National Monument
District Office
Field Office
Public Law/Proclamation
Date of Designation
Updates to Designation
BLM Acres
Other Federal Acres
*State and Private Inholdings
Total Monument Acres (Federal only)
AZ
Agua Fria
Phoenix
Hassayampa
Proclamation 7263
1/11/2000
70,980
0
1,364
70,980
AZ
Baaj Nwaavjo I’tah Kukveni—Ancestral Footprints of the Grand Canyon
Arizona Strip
Arizona Strip
Proclamation 10606
8/8/2023
529,242
388,376
42,409
917,618
AZ
Grand Canyon-Parashant
Arizona Strip
Proclamation 7265
1/11/2000
812,581
208,449
27,291
1,021,030
AZ
Ironwood Forest
Gila
Tucson
Proclamation 7320
6/9/2000
128,756
299
59,573
129,055
AZ
Sonoran Desert
Phoenix
Lower Sonoran
Proclamation 7397
1/17/2001
486,400
0
10,000
486,400
AZ
Vermilion Cliffs
Arizona Strip
Arizona Strip
Proclamation 7374
11/9/2000
279,566
0
14,121
279,566
State Total
2,307,525
597,124
154,758
2,904,649
CA
Berryessa Snow Mountain
Central California
Ukiah
Proclamation 9298
7/10/2015
Proclamation 10745 (5/2/2024)
147,262
197,214
0
344,476
CA
California Coastal
Northern California, Central California, and California Desert
Arcata, Bakersfield, Central Coast, Palm Springs-South Coast, and Ukiah
Proclamation 7264
1/11/2000
Proclamation 9089 (3/11/2014), Proclamation 9563 (1/12/2017)
8,858
0
0
8,858
CA
Carrizo Plain
Central California
Bakersfield
Proclamation 7393
1/17/2001
211,045
0
35,772
211,045
CA
Chuckwalla
California Desert
Palm Springs-South Coast
Proclamation 10881
1/14/2025
624,270
739,193
CA
Fort Ord
Central California
Central Coast
Proclamation 8803
4/20/2012
7,212
7,446
0
14,658
CA
Mojave Trails
California Desert
Barstow, Needles, and Palm Springs-South Coast
Proclamation 9395
2/12/2016
1,600,000
0
0
1,600,000
CA
Sand to Snow
California Desert
Barstow and Palm Springs-South Coast
Proclamation 9396
2/12/2016
83,000
71,000
0
154,000
CA
Santa Rosa and San Jacinto Mountains
California Desert
Palm Springs-South Coast
Public Law 106-351
10/24/2000
Public Law 111-11 (3/30/2009)
98,981
70,115
110,926
169,096
State Total
2,780,628
345,775
146,698
3,126,403
CO
Browns Canyon
Rocky Mountain
Royal Gorge
Proclamation 9232
2/19/2015
9,793
11,811
0
21,604
CO
Canyons of the Ancients
Southwest
Tres Rios
Proclamation 7317
6/9/2000
176,000
370
8,630
176,370
State Total
185,793
12,181
8,630
197,974
ID
Craters of the Moon
Twin Falls
Shoshone
Proclamation 7373
11/9/2000
275,076
463,344
14,824
738,420
State Total
275,076
463,344
14,824
738,420
MT
Pompeys Pillar
Eastern Montana/Dakotas
Billings
Proclamation 7396
1/17/2001
51
0
0
51
MT
Upper Missouri River Breaks
North Central Montana
Lewistown
Proclamation 7398
1/17/2001
377,346
0
120,475
377,346
State Total
377,397
0
120,475
377,397
NM
Kasha-Katuwe Tent Rocks
Proclamation 7394
1/17/2001
4,647
0
757
4,647
NM
Organ Mountains-Desert Peaks
Proclamation 9131
5/21/2014
496,529
0
77,008
496,529
NM
Prehistoric Trackways
PL 111-11
3/30/2009
5,280
0
0
5,280
NM
Rio Grande del Norte
Proclamation 8946
3/25/2013
242,710
0
68,020
242,710
State Total
749,166
0
145,785
749,166
NV
Avi Kwa Ame
Proclamation 10533
3/21/2023
442,832
63,901
0
506,733
NV
Basin and Range
Proclamation 9297
7/10/2015
703,585
0
4,438
703,585
NV
Gold Butte
Proclamation 9559
12/28/2016
296,937
0
0
296,937
State Total
1,443,354
63,901
4,438
1,507,255
OR
Cascade-Siskiyou
Medford
Ashland
Proclamation 7318
6/9/2000
Proclamation 9564 (1/12/2017)
112,928
0
19,752
112,928
State Total
112,928
0
19,752
112,928
UT
Bears Ears
Proclamation 9558,
12/28/2016
1,074,908
289,040
26,911
1,363,948
UT
Grand Staircase-Escalante
Proclamation 6920
9/19/1996
1,870,000
0
2,478
1,870,000
UT
Jurassic
PL 116-9
3/12/2019
850
0
0
850
State Total
2,945,758
289,040
29,389
3,234,798
WA
San Juan Islands
Proclamation 8947
3/25/2013
970
0
0
970
State Total
970
0
0
970
Total Acres
11,178,595
1,771,365
759,672
13,064,883
No warranty is made by the BLM as to the accuracy, reliability, or completeness of these data for use or for purposes not intended by BLM.
 
*State and Private inholdings are not part of the National Monument.