The Vigil Network Site Index: Near Dark Gully

General Information

Site Name: Near Dark Gully
Location: Arvada, Wyoming USA
Principal Investigator: William Emmett
Address: U.S.G.S. Denver, Colorado USA
Date of Site Establishment and/or Field Measurements: 07/1950, 07/1962, 06/1963, 08/1963, 07/1968
Original Date of Submission to the Vigil Network: 1 November 1968
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Location at Lower End of Basin

Latitude: 44°41'12" N
Longitude: 106°05'00" W
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Purposes

(ranked in order of importance)

1. Channel Change
2. Erosion
3. Sedimentation
4. Vegetation

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Site Information

Annual precipitation: 330 mm
Elevation: 1130 m
Relief: 30.5 m
Drainage Area: 0.02 km²
Vegetation: Grasses and sagebrush
Bench marks: 12
U.S.G.S. 7.5 minute maps: Arvada NE, WY
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Stream Channels

Channel cross sections: 5
Bed profile: 1
Headcut retreat: 11
Discharge
Crest-stage gage: 1
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Vegetation

Quadrats: 2
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Links to Data Files

• Report
• Part of Sheridan, WY, MT, 1:250,000 USGS Topographic Map (75 KB)
• Topographic Planetable Map of Site (55 KB)
• Vegetation Quadrat Number One (112 KB)
• Vegetation Quadrat Number Two (118 KB)
• Planetable Sketch Map of Site (39 KB)
• Explanation of Column Headings in Tables
• Table 1 - Cross-Section and Bench Mark Information
• Table 2 - Triangulation Net for Distances Between Bench Marks
• Table 3 - Cross-Sectional Survey of Ground-Surface Elevation, Section BM 11 - BM 1 (Station 178 Feet)
• Table 4 - Cross-Sectional Survey of Ground-Surface Elevation, Section BM 10 - BM 2 (Station 240 Feet)
• Table 5 - Cross-Sectional Survey of Ground-Surface Elevation, Section BM 5 - BM 3 (Station 396.5 "A" Feet)
• Table 6 - Cross-Sectional Survey of Ground-Surface Elevation, Section BM 9 - BM 5 (Station 399 Feet)
• Table 7 - Cross-Sectional Survey of Ground-Surface Elevation, Section BM 8 - BM 6 (Station 451 Feet)
• Table 8 - Long Profile of Channel Bed Elevation, Survey of July, 1962
• Table 9 - Size and Location of Headcuts

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Additional Data

Additional data collected but not submitted with this file: Ground and aerial photos.
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For information on how to obtain USGS topographic maps of this study site, please visit the USGS National Mapping Information Page at http://mapping.usgs.gov.

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