ILLUSTRATIONS 
Page. 
Plate I. Chilkat Peninsula, looking south from Mount Ripinski; Haines Mis- 
sion in the foreground 9 
II. Map showing location of Porcupine placer district 10 
III. View of Porcupine, Alaska 12 
IV. A, Porcupine Creek at No. 1 above Discovery claim; B, The head 
of Porcupine Creek, looking south 14 
V. Geologic map of vicinity of Porcupine 16 
VI. A, Bench deposit on Cranston claim; B, High bench deposit on 
Woodin claim, McKinley Creek 18 
VII. A, Large flume, Discovery claim; B, Bucket elevator and sump 
cut into bed rock, Discovery claim ., 20 
VIII. A, Claim No. 1 above Discovery; B, High bench deposit on Finley 
claim 22 
IX. A, Chisholm claim, McKinley Creek; B, McKinley Creek Canyon, 
below Woodin claim 24 
X. A, Hydraulicking at the head of Cahoon Creek; B, Hydraulicking 
bench deposit on Woodin claim 26 
Fig. 1. Map of Porcupine Creek, showing location of claims 21 
2. Section across Cranston claim, showing side bench deposit 23 
3. Section of Porcupine Creek at the Finley claim 24 
4 . Section of McKinley Creek at the Woodin claim 25 
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