ADF STAT. No. 



WR 10 

 142-60 HARDING RIVER Previous No. 13 



56* 12. 3' N. 131* 37. 3' W, 



WRANGELL, BRADHELD CANAL, 6. 3 miles from Aead on N. shore. 



MAJOR SPECIES Chum. OTHER SPECIES Pink, king, coho. 



ESCAPEMENT TIMING Early . July -Aug. (est.) ESCAPEMENT MAGNITUDE 



SPAWNING FACILITIES Good. 



STREAM TEMPERATURES Normal range. No observed temperatures. 



VALLEY DESCRIPTION Glacial and stream-cut. 



DRAINAGE ^7. 2 square miles (polar planimeter). Drains Fall Lake 5 miles upstream. The river has 



its headwaters near some small glaciers about 20 miles above the lake 

 STREAM MOUTH IDENTIFICATION It enters Bradfield Canal opposite the Eagle River and 



Duck 1. 

 ANCHORAGE Good anchorage W. of Duck I. Good float W. of river mouth. 

 TRAILS AND SURVEY ROUTES Small light skiffs can be run to falls. The U. S. G. S. has 



blazed a trail up the right bank as far as the thermograph building. The stream is wadeable 



just above this point. 

 AERIAL SURVEY NOTES Visibility is not too good because of the glacial water. 



INTERTIDAL ZONE 



LENGTH 0.5 mile. AVER AGE WI DTH/ DEPTH 200V3". 



GRADIENT AND VELOCITIES Moderate. 



BOTTOM Boulders with sand and mud in the lower part. 



LOW TIDE LOCATION 



HIGH TIDE LOCATION 



SCHOOLING AREAS A deep area about halfway up the intertidal zone is utilized. Large pool 



at head of tidewater. 

 SPAWNING AREAS Some spawning might take place near the head of the zone. 

 GENERAL NOTES 



UPSTREAM 



LENGTH ACCESSIBLE 5 miles to falls. AVER AGE WI DTH / D EPTH 150V20". 



GRADIENT AND VELOCITIES Moderate. 



BOTTOM Sand, gravel, and rock. 



MARKER DISTANCE 



MARKER IDENTIFICATION 



BARRIERS Suspected block just below lakes. 



TRIBUTARIES Numerous tributaries enter from the W. side. No reports of spawning in any tribu- 

 tary stream. 



SCHOOLING AREAS Pools are scattered throughout the stream's length. A large, deep hole at 

 the U. S. G. S. thermograph building is heavily utilized. 



SPAWNING AREAS Spawning area is good from thermograph building station to just below falls. 

 Spawning takes place in all riffle areas. 



GENERAL NOTES Very good population of brown bear. 



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