9456

• UCREFRP Catalog Number: 9456
• Author: Van Steeter, M. M. and J. Pitlick.
• Title: Aerial photograph/GIS Analysis and Field Studies of the 15 and 18 Mile Reach of the Colorado River.
• USFW Year: 1994.
• USFW - Doc Type: Boulder.
• Copyright Material: NO

,

9

Change in Instream Water Area Between 1937 and 1986

,

100,000
80,000
60,000
40,000
20,000
o
g -20,000
-40,000
-60,000 t
-80,000 t
-100,000 1

249,000 >

f
!
II
~

,

~~~e2~~~~~~~~~R~m~~~~~~;~~~~~~~~
--------------------------------

Riwr Mile

.

Change in Island Area Between 1937 and 1986

.

150,000 T
100,000
f 50,000
!
II 0
~
g -50,000
-100,000
!
I
-150,000 "

-E-- 377,000

.

<E-- 674,000

~~~m2~~~~~~~~~gm~~~~~~~~~~~~~~~~
--------------------------------

Riwr Mile

.

Change in Side Channel/Backwater Area Between 1937 and
1986

.

100,000
80,000
60,000
40,000
20,000
o
g -20,000
-40,000
-60,000
-80,000
-100,000

f
II
...
II
~

.

. ~~

.~N-o~m~~~.~N-o~m~~~.MN-O~~~~~.m
~~~~~~~~~~~~~~~~~!~~~~~~~~~~~~~~

Figure 4. Changes in instream water~ island, and side channel/backwater area between
1937 and 1986

.