7067

• UCREFRP Catalog Number: 7067
• Author: Banks, J. L.
• Title: Fish Species Distribution in Dinosaur National Monument During 1961 and 1962.
• USFW Year: 1964.
• USFW - Doc Type: Master's Thesis.
• Copyright Material: NO

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however, and ranges from about 2.5 teet drop per mUe in slow water
seoUons to more than 25 teet drop per mile in some ot the steep
c~n areas (Table 1).

Contour maps ot nino saur National Y!011U.tl18nt show a drop in
the no or at the Yampa Cal\YOn of 590 teet in 47 stream miles, or an

average of approximately 13 feet per Ill:Ua between the eastern boundary
and the mouth of the river at ~cho Park. Drop in this canyon also is
inconsistent (Table 1). The river talls at a faster rate over the
last 12 mUes before joining the Green River at Echo Park.

stream-flo't'1
--

~'tream-flo\l in the Green, Yampa, and L1 ttle Snake rivers

was the most variable of all tho environmental factors observed. An

analysis of records compiled by the U$S during this century shOloTS that
stream-flow was extremely variablo in three respeots: (1) from one
looation to another within the thesis area; (2) :t'rom season to seaoon;

and ()) from year to year.

Local variation in stream-flow

Variation in flow trom one location to another within the

thesis area depended upon the alIIOunt of discharge of tributary streams.
The momentary discharge at four gaging stations on the Green, Yampa,
and Little Snake rivers on the given dates (Table 2) shows the effect

ot Little Snake and Yampa river run-off on the volume of the Green

River betvreen echo Park and Jensen, Utah.

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