6006

• UCREFRP Catalog Number: 6006
• Author: Holden, P. B. and L. W. Crist.
• Title: Documentation of Changes in the Macroinvertebrate and Fish Populations in the Green River Due to Inlet Modification of Flaming Gorge Dam
• USFW Year: 1981.
• USFW - Doc Type: Final Report.
• Copyright Material: NO

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5

Echo Park (65 MBD)
This station begins just below the mouth of the Yampa River.
The integrity (individual nature of the water) of both rivers
is preserved (i.e., limited mixing) for over a mile below their
juncture. Habitat is very diverse in this station, with
riff 1 es, poo 1 s, edd i es, and backwaters all common. Also, Poo 1
Creek, a small, permanent, clear stream enters the Green River
in this station. Substrate is nearly 50% cobble-rubble and 45%
sand, wi th 5% silt along the shores and in backwaters. The
station is 1.0 mile long.
Island Park (78 MBD)
The river breaks out of Whirlpool Canyon to form this area.
Velocity is slower than in the canyon area, with 70% of the
substrate composed of sand, 25% of cobble-rubble, and 5% silt.
Much of the station is braided with sand islands in low water,
although long riffles are found in the upper portion. Habitat
is diverse, with an abundance of riffles, runs, backwaters, and
eddies. The station is 1.0 mile long.
Jensen (110 MBD)
This station is located below the U.S. Highway 40 bridge and,
similar to Lodore, has a 100% sand bottom. Habitat is not very
diverse, with runs predominating, especially in high water.
Backwaters around sand islands are common in low flows. Ashley
Creek, a permanent, highly saline irrigation return stream
enters this station, as does a drain from Stewart Lake, a

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