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Legend (Hazards/Hazards_Viewer)

CO_historic_perimeters_dd83 (1)
compiled_landslides_from_LiDAR_and_other_maps (3)
compiled_landslides_from_24K_maps (4)
compiled_landslides_from_48-100K_maps (5)
compiled_landslides_from_HB1041_maps (6)
compiled_landslides_from_250K_maps (7)
Countywide Debris Flow (9)
EG-14 Collapsible soil case histories (11)
Colorado highways (12)
Regional_ map boundaries (13)
Meeker area collapsible soil susceptibility (14)
CGS Douglas County collapsible soils (15)
OFR-09-01 Collapsible Soil Hazard Montrose Geohazards (16)
Rangely area collapsible soil susceptibility (17)
Corez area collapsible soil susceptibility (18)
MS-34 Roaring Fork River Corridor collapsible soil (19)
MS-47 Collapsible soils Rifle area (20)
EG-14 18-inch precipitation boundary (21)
EG-14 Eolian (wind-blown) deposits (22)
EG-14 Dune and sheet sand deposits (23)
EG-14 Cretaceous and Tertiary Formations (24)
EG-14 Evaporite Formations (25)
USFS CGS AML Inventory Mine Openings (28)
USFS CGS AML Inventory Mine Piles (29)
USFS CGS AML Inventory Areas (30)
USFS CGS AML Laboratory Water Results (31)
USFS CGS AML Field Water Test Results (32)
USFS CGS AML Photos (33)
Abandoned_Mines_Water_Quality (34)
Red - Draining mines without recent investigations or restoration project. Red - Draining mines without recent investigations or restoration project.
Yellow - Draining mines with recent investigation or restoration project in process. Yellow - Draining mines with recent investigation or restoration project in process.
Green - Draining mines with partial to complete restoration. Green - Draining mines with partial to complete restoration.
Avalanche (36)
13 13
Corrosive Soils (37)
10 10
Collapsible Soils (38)
8 8
Debris Flow (39)
6 6
Expansive Soils and Rock (40)
7 7
Floodplain (41)
11 11
Groundwater (42)
12 12
Landslide (43)
3 3
Potentially Unstable Slopes (44)
1 1
Rockfall (45)
5 5
Slope Failure Complex (46)
4 4
Subsidence (47)
9 9
Unstable Slopes (48)
2 2
24k Quads Master List 2023-2024 Proposal (49)
CGS 2023-24 Proposal CGS 2023-24 Proposal
Edmap Edmap
CGS in review CGS in review
CGS Completed CGS Completed
CGS In Progress CGS In Progress
CGS Long-Range Plan CGS Long-Range Plan
USGS Completed Maps USGS Completed Maps
USGS In Prog / Proposed USGS In Prog / Proposed
Geology not mapped (no color) Geology not mapped (no color)
Cenozoic trench (53)
Quaternary Faults (55)
124: FAULT CERATIN-Holocene and post-glacial (<15ka) 124: FAULT CERATIN-Holocene and post-glacial (<15ka)
134: FAULT CERTAIN-Quaternary - late (<130ka) 134: FAULT CERTAIN-Quaternary - late (<130ka)
144: FAULT CERTAIN-Quaternary - middle and late (<750 ka) 144: FAULT CERTAIN-Quaternary - middle and late (<750 ka)
154: FAULT CERTAIN-Quarternary (<1.6 Ma) 154: FAULT CERTAIN-Quarternary (<1.6 Ma)
224: FAULT CONCEALED-Holocene and post glacial (<15ka) 224: FAULT CONCEALED-Holocene and post glacial (<15ka)
234: FAULT CONCEALED-Quaternary - late (<130 ka) 234: FAULT CONCEALED-Quaternary - late (<130 ka)
244 FAULT CONCEALED-Quaternary - middle and late (<750 ka) 244 FAULT CONCEALED-Quaternary - middle and late (<750 ka)
254: FAULT CONCEALED-Quarternary (<1.6 Ma) 254: FAULT CONCEALED-Quarternary (<1.6 Ma)
324: FAULT INFERRED-Holocene and post glacial (<15ka) 324: FAULT INFERRED-Holocene and post glacial (<15ka)
334: FAULT INFERRED-Quaternary - late (<130 ka) 334: FAULT INFERRED-Quaternary - late (<130 ka)
344: FAULT INFERRED-Quaternary - middle and late (<750 ka) 344: FAULT INFERRED-Quaternary - middle and late (<750 ka)
354: FAULT INFERRED-Quarternary (<1.6 Ma) 354: FAULT INFERRED-Quarternary (<1.6 Ma)
Fault Balls (56)
Cenozoic folds (57)
Cenozoic faults (58)
boos_boos_125k_shp (60)
colorado_500k_shp (61)
cripple_crk_48k_shp (62)
epis_shp (63)
florissant_62500k_shp (64)
k_shp (65)
koenig_shp (66)
matthews_250k_shp (67)
monetzuma_62500k_shp (68)
rocky_mtn_park_50k_shp (69)
Seismic Stations 2018 (71)
Bureau of Reclamation Bureau of Reclamation
Colorado Geological Survey Colorado Geological Survey
Colorado Mesa University Colorado Mesa University
CU Boulder CU Boulder
IRIS IRIS
USGS NEIC USGS NEIC
National Institute for Occupational Safety National Institute for Occupational Safety
University of New Mexico University of New Mexico
<all other values> <all other values>
earthquakes_8_29_2016 (Magnitude) (73)
1.3 - 1.9 1.3 - 1.9
2. - 2.9 2. - 2.9
3.0 - 3.9 3.0 - 3.9
4.0 - 4.9 4.0 - 4.9
5.0 - 5.9 5.0 - 5.9
6.0 - 6.6 6.0 - 6.6
earthquakes_8_29_2016 (Intensity) (74)
F F
II II
III III
IV IV
V V
VI VI
VII VII
DOLA County Boundaries (75)