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Slide roll contains the following photographs:

Y03-11 (Silver City road section)
Date: August 12, 2003
Location Coordinates: 61° 2’ 3.6” N, 138° 22’ 48.8” W, 806.7 m asl (± 8.7 m)
Site Description: roadcut through SW-facing hill exposes loess over glaciofluvial gravel, with 4 paleosols in colluviated loess
Sample Depths & Descriptions:

• Y03-11-01 - 0-18 cm - ACk (fresh loess)
• Y03-11-02 - 18-47 cm - Soil 1 – Bmk
• Y03-11-03 - 47-100 cm - Loess
• Y03-11-04 - 100-110 cm - Soil 2 – includes charcoal
• Y03-11-05 - 110-160 cm - Loess with secondary carbonate in root channel
• Y03-11-06 - 160-170 cm - Soil 3 – Ahk with charcoal
• Y03-11-07 - 160-170 cm - Soil 3 – Bmk
• Y03-11-08 - 170-198 cm - Loess with secondary carbonate in root channel
• Y03-11-09 - 198-202 cm - Soil 4 – Ahk – laterally continuous for ~ 1.5 m
• Y03-11-10 - 202-230 cm - Loess with secondary carbonates in roots
• Y03-11-11 - 230-255 cm - Soil 5 – Ahk – includes abundant charcoal bands
• Y03-11-12 - 230-255 cm - Soil 5 – Bmk – infilled squirrel burrows immediately below
• Y03-11-13 - 255-300 cm+ - Loess
  Additional notes on modern soil & paleosols:
  Soil 1
• consists of Bmk horizon material with 2 distinct colours: 7.5YR 4/3 d & 10YR 4/3 d
• loess between Soils 1 & 3 is sandier
  Soil 2
• 90% Ahk material, 2-10 cm thick
• Ahk – 10YR 3/2 d
• Bmk – 7.5YR 4/2 d
• less abundant carbonate than in paleosols & loess below
  Soil 3 - most of exposure has Ahk (2-5 cm thick) over Bmk (4-10 cm thick), with carbonates as for Soil 5
  Soil 4 - mostly Ahk (10YR 3/2 d) material 2-8 cm thick, some Bmk (10YR 4/2 d) < 2 cm thick, with carbonates as for Soil 5
  Soil 5
• complex intermixing of Ahk & Bmk material, charcoal most abundant in Ahk
• individual colour bands 2-10 cm thick
• overall dip of horizons (10° to W) is parallel to surface
• similar size & density of secondary carbonates as in loess above & below; associated with root channels, < 5 mm diameter, covering ~ 5% of surface
  Slide roll 4, #36-32 (corresponding prints and negatives: Print roll 5, #26-30)

Y03-12 (island off Slims River delta)
Date: August 13, 2003
Location Coordinates: 61° 1’ 9.1” N, 138° 29’ 27.9” W, 819 m asl (± 6.0 m)
Site Description: good grassland development on undulating aeolian veneer over bedrock, SW aspect; vegetation: A. frigida, C. purpurescens, P. glauca, Erigeron, Plantago, Oxytropis; good crust cover, mossy on more northerly aspects
Sample Depths & Descriptions:

• Y03-12-01 - Crust
• Y03-12-02 - 0-10 cm - ACk
  Slide roll 4, #31-10 (miscellaneous site views of Y03-12 & Slims R delta island)

This file contains the following photographs in both print photograph and negative format:

Kluane Lake (S. shore, near Kluane Lake Research Station)
Print roll 10, # 34-36

This file contains the following photographs in both print photograph and negative format:

Thorsen Bay
Print roll 11, #01-2A
Corresponding slides: slide roll 6, #12-10

Y04-19 (27.5 km on Cultus Bay Rd., near Thorsen Bay)
Date: July 22, 2004
Location Coordinates: 61º 12’ 3.0” N, 138º 28’ 58.3’ W, 819 m asl (± 18.9 m)
Site Description: Roadcut at base of 30º, E-facing slope. Colluviated loess overlies sandy glaciofluvial at 120 cm. Prominent paleosol with “cumulic” B horizon at 80-120 cm, with strong effervescence throughout exposure.
Print roll 11, #3A-5A (profile), #6A-10A (landscape)
Corresponding slides: slide roll 6, #9-7 (profile), #6-1 (landscape)

Sample Depths & Descriptions: Y04-19-01 – charcoal at 95 cm
Roadcut opposite ~ 30 m to NE on grassy S aspect (10° slope) with 15-20 cm of calcareous loess and sand over 2 cm White River ash; strongly effervescent throughout.
Print roll 11, #11A-12A (profile)
Corresponding slides: slide roll 7, #36-35 (profile)

Thorsen Bay landscape
Print roll 11, #13A-16A
Corresponding slides: Slide roll 7, #34-32

Y04-20B
Date: July 22, 2004
Location Coordinates: 61º 10’ 16.5” N, 138º 26’ 18.7’ W, 797.5 m asl (± 5.9 m)
Site Description: wind-eroded Slims soil on glaciolacustrine with contorted bedding (exposed on blown-out roadcut); calcareous to surface; White R ash pockets at 10-20 cm; S aspect, 5° slope.
Print roll 11, #17A-21A
Corresponding slides: Slide roll 7, #31-26

Y04-22
Date: July 22, 2004
Location Coordinates: 61º 9’ 39.24” N, 138º 25’ 7.8’ W, 790.6 m asl (± 6.4 m)
Site Description: toe of 30° slope, W aspect (grassy slope with poplar at toe); 1.0-1.2 of colluviated loess over gravelly glaciofluvial with buried soil at 70-80 cm
Print roll 11, #22A-24A
Corresponding slides: Slide roll 7, #25-24

This file contains the following photographs in both print photograph and negative format:

Cultus Bay Rd.
(landscape views looking W from road; lake is likely at ~61°4’ 10.5”N, 138°22’ 31.5”)
Print roll 12, #0A-2A
Corresponding slides: Slide roll 7, #23-22

Keyhole Pond (landscape views)
Print roll 12, #3A-4A

Y04-23 (Saddle W of Keyhole Pond)
Date: July 22, 2004
Location Coordinates: 61º 4’ 46.5” N, 138º 22’ 32.2’ W, 828 m asl (± 8.0 m)
Site Description: 7º, NW-facing slope. Cumulic profile in colluviated loess with White River tephra at 10 cm, brownish paleosol at 23-27 cm, glaciofluvial sand at 50 cm.
Sample Depths & Descriptions: Y04-23-01 – charcoal at 23-27 cm, immediately above paleosol
Print roll 12, #5A-6A
(Location not recorded: Print roll 12, #7A-8A)

Y04-24 (W side of Rat Lake)
Date: July 22, 2004
Location Coordinates: 61º 9’ 54.6” N, 138º 25’ 41.6” W, 807.7 m asl (± 13.5 m)
Site Description: 23° slope, NE aspect; cumulic profile with White R ash at 20 cm; no obvious charcoal bands.
Print roll 12, #9A-10A (9A print is missing)

"Ian's Lake"(W of NW corner of Rat Lake)
Location Coordinates: 61º 10’ 1.4” N, 138º 25’ 47.7” W, 773.4 m asl (± 9.8 m) (coordinates are for ridge crest on NE side of lake)
Site Description: basal date 700 BP in terrestrial sediments; NE side has grassy 30°slope
Print roll 12, #11A

Y04-25 (S shore of “Ian’s Lake”, NW of Rat Lake)
Date: July 22, 2004
Location Coordinates: 61º 10’ 0.7” N, 138º 25’ 49.2” W, 781.8 m asl (± 8.8 m)
Site Description: 35 cm of colluviated loess over gravelly sandy glaciofluvial; no visible charcoal bands; buried soil at 25-35 cm; White R ash at 6-8 cm.
Print roll 12, #12A-13A

Y04-26 (EW)
Date: July 23, 2004
Location Coordinates: 61º 1’ 59.8” N, 138º 21’ 53.6” W, 836.1 m asl (± 7.7 m)
Site Description: grassland at crest of 33° terrace scarp, S aspect.
Sample Depths & Descriptions: Y04-26-01 – 0-10 cm
Print roll 12, #14A-15A
Corresponding slides: Slide roll 7, #21-20

Y04-27
Date: July 23, 2004
Location Coordinates: 61º 2’ 0.9” N, 138º 21’ 53.6” W, 843.6 m asl (± 5.8 m) (~ 35 m N of Y04-26)
Site Description: spruce forest on terrace surface; level.

• 0-8 cm - Loess-rich forest floor; strongly calcareous.
• 8-13 cm - Bmk
• 13-15 cm - Discontinuous pockets of White R ash
• 15-35 cm - Bmk (Slims soil) – no charcoal visible
• 35-75 cm - Gray calcareous loess.
• 75 cm+ - Gravelly sandy glaciofluvial deposit.
  Print roll 12, #16A-17A
  Corresponding slides: Slide roll 7, #19-18

Y04-28 (EW)
Date: July 23, 2004
Location Coordinates: 61º 2’ 34.4” N, 138º 21’ 57.0” W, 820.2 m asl (± 6.1 m)
Site Description: grassland on esker crest W of Jenny L; 30° slope, SW aspect
Sample Depths & Descriptions: Y04-28-01: 0-10 cm
Print roll 12, #18A-19A
Corresponding slides: Slide roll 7, #17-16

Y04-30 (between eskers, W of Jenny Lake)
Date: July 23, 2004
Location Coordinates: 61º 2’ 31.6” N, 138º 21’ 52.3’ W, 817.6 m asl (± 6.1 m)
Site Description: Level (base of saddle). Colluviated loess to 90 cm+, with White River tephra at 15-17 cm, brownish paleosol at 17-35 cm, underlain by turbated Bmku with multiple charcoal-rich bands.
Sample Depths & Descriptions:

• Y04-30-01 – charcoal at 13 cm (above WR tephra)
• Y04-30-02 – charcoal at 22 cm (below WR tephra)
• Y04-30-03 – charcoal at 75 cm
  Print roll 12, #20A-22A
  Corresponding slides: Slide roll 7, #15-13

Jenny Lake (landscape views)
Print roll 12, #23A-24A

This file contains the following photographs in both print photograph and negative format:

Y04-31 (EW)
Date: July 23, 2004
Location Coordinates: 61º 3’ 9.2” N, 138º 21’ 30.3’ W, 837.2 m asl (± 6.4 m)
Site Description: crest of N-S esker ridge
Sample Depths & Descriptions: Y04-31-01: 0-10 cm
Print roll 13, #1-3
Corresponding slides: Slide roll 7, #12-11

Y04-32
Date: July 23, 2004
Location Coordinates: 61º 3’ 7.4” N, 138º 21’ 27.7’ W, 823.7 m asl (± 13.7 m)
Site Description: toeslope on NE side of same ridge as for Y04-31; 20° slope, NE aspect; Cryosol with permafrost at 34 cm; 30 cm of forest floor organic horizons; abundant charred wood fragments at top of mineral soil & in lowest part of organic horizon.
Print roll 13, #4-5
Corresponding slides: Slide roll 7, #10-9

Y04-34
Date: July 23, 2004
Location Coordinates: 61º 3’ 47.7” N, 138º 21’ 2.5’ W, 838 m asl
Site Description: Toe of 30º, W-facing grassland slope. Colluviated loess with White River tephra at 8-9 cm, brownish paleosol (9-35 cm), overlying sandy glaciofluvial at 35-70 cm+.
Sample Depths & Descriptions: Y04-34-01: charcoal at 34 cm
Print roll 13, #6-7
Corresponding slides: Slide roll 7, #8-7

Y04-35 (EW)
Date: July 23, 2004
Location Coordinates: 61º 3’ 49.9” N, 138º 21’ 1.1” W, 854.4 m asl (± 6.3 m)
Sample Depths & Descriptions: Y04-35-01: 0 – 10 cm
Print roll 13, #8-10 (Location not recorded: Print roll 13, #11-12)
Corresponding slides: Slide roll 7, #6-5

Y04-36
Date: July 23, 2004
Location Coordinates: 61º 8’ 11.5” N, 138º 25’ 50.8” W, 825.6 m asl (± 14.5 m)
Site Description:

• 10-0 cm - LF
• 0-15 cm - Bmk1 (7.5YR 4/6 m)
• 15-28 cm - Bmk2 (2.5Y 4/3 m)
• 28-48 cm - Ck
• 48-55 cm+ - IICk (sandy gravelly glaciofluvial)
• No charcoal visible in mineral horizons
  Print roll 13, #13-14
  Corresponding slides: Slide roll 7, #4-3

Y04-37
Date: July 23, 2004
Location Coordinates: (roadcut adjacent to Y04-36)
Site Description: multiple colour bands in Slims soil; some charcoal blobs (not sampled) which are right size to have been roots.
Print roll 13, #15-19
Corresponding slides: Slide roll 7, # 2-1

Slide roll contains the following photographs:

Thorsen Bay
Print roll 11, #01-2A; slide roll 6, #12-10

Y04-19 (27.5 km on Cultus Bay Rd., near Thorsen Bay)
Date: July 22, 2004
Location Coordinates: 61º 12’ 3.0” N, 138º 28’ 58.3’ W, 819 m asl (± 18.9 m)
Site Description: Roadcut at base of 30º, E-facing slope. Colluviated loess overlies sandy glaciofluvial at 120 cm. Prominent paleosol with “cumulic” B horizon at 80-120 cm, with strong effervescence throughout exposure.
Slide roll 6, #9-7 (profile), #6-1 (landscape)
Corresponding prints and negatives: Print roll 11, #3A-5A (profile), #6A-10A (landscape)

Slide roll contains the following photographs:

Y04-19 (27.5 km on Cultus Bay Rd., near Thorsen Bay)
Date: July 22, 2004
Location Coordinates: 61º 12’ 3.0” N, 138º 28’ 58.3’ W, 819 m asl (± 18.9 m)
Site Description: Roadcut at base of 30º, E-facing slope. Colluviated loess overlies sandy glaciofluvial at 120 cm. Prominent paleosol with “cumulic” B horizon at 80-120 cm, with strong effervescence throughout exposure.
Sample Depths & Descriptions: Y04-19-01 – charcoal at 95 cm
Roadcut opposite ~ 30 m to NE on grassy S aspect (10° slope) with 15-20 cm of calcareous loess and sand over 2 cm White River ash; strongly effervescent throughout.
Slide roll 7, #36-35 (profile)
Corresponding prints and negatives: Print roll 11, #11A-12A (profile)

Thorsen Bay landscape
Slide roll 7, #34-32
Corresponding prints and negatives: Print roll 11, #13A-16A

Y04-20B
Date: July 22, 2004
Location Coordinates: 61º 10’ 16.5” N, 138º 26’ 18.7’ W, 797.5 m asl (± 5.9 m)
Site Description: wind-eroded Slims soil on glaciolacustrine with contorted bedding (exposed on blown-out roadcut); calcareous to surface; White R ash pockets at 10-20 cm; S aspect, 5° slope.
Slide roll 7, #31-26
Corresponding prints and negatives: Print roll 11, #17A-21A

Y04-22
Date: July 22, 2004
Location Coordinates: 61º 9’ 39.24” N, 138º 25’ 7.8’ W, 790.6 m asl (± 6.4 m)
Site Description: toe of 30° slope, W aspect (grassy slope with poplar at toe); 1.0-1.2 of colluviated loess over gravelly glaciofluvial with buried soil at 70-80 cm
Slide roll 7, #25-24
Corresponding prints and negatives: Print roll 11, #22A-24A

Cultus Bay Rd.
(landscape views looking W from road; lake is likely at ~61°4’ 10.5”N, 138°22’ 31.5”)
Slide roll 7, #23-22
Corresponding prints and negatives: Print roll 12, #0A-2A

Y04-26 (EW)
Date: July 23, 2004
Location Coordinates: 61º 1’ 59.8” N, 138º 21’ 53.6” W, 836.1 m asl (± 7.7 m)
Site Description: grassland at crest of 33° terrace scarp, S aspect.
Sample Depths & Descriptions: Y04-26-01 – 0-10 cm
Slide roll 7, #21-20
Corresponding prints and negatives: Print roll 12, #14A-15A

Y04-27
Date: July 23, 2004
Location Coordinates: 61º 2’ 0.9” N, 138º 21’ 53.6” W, 843.6 m asl (± 5.8 m) (~ 35 m N of Y04-26)
Site Description: spruce forest on terrace surface; level.

• 0-8 cm - Loess-rich forest floor; strongly calcareous.
• 8-13 cm - Bmk
• 13-15 cm - Discontinuous pockets of White R ash
• 15-35 cm - Bmk (Slims soil) – no charcoal visible
• 35-75 cm - Gray calcareous loess.
• 75 cm+ - Gravelly sandy glaciofluvial deposit.
  Slide roll 7, #19-18
  Corresponding prints and negatives: Print roll 12, #16A-17A

Y04-28 (EW)
Date: July 23, 2004
Location Coordinates: 61º 2’ 34.4” N, 138º 21’ 57.0” W, 820.2 m asl (± 6.1 m)
Site Description: grassland on esker crest W of Jenny L; 30° slope, SW aspect
Sample Depths & Descriptions: Y04-28-01: 0-10 cm
Slide roll 7, #17-16
Corresponding prints and negatives: Print roll 12, #18A-19A

Y04-30 (between eskers, W of Jenny Lake)
Date: July 23, 2004
Location Coordinates: 61º 2’ 31.6” N, 138º 21’ 52.3’ W, 817.6 m asl (± 6.1 m)
Site Description: Level (base of saddle). Colluviated loess to 90 cm+, with White River tephra at 15-17 cm, brownish paleosol at 17-35 cm, underlain by turbated Bmku with multiple charcoal-rich bands.
Sample Depths & Descriptions:

• Y04-30-01 – charcoal at 13 cm (above WR tephra)
• Y04-30-02 – charcoal at 22 cm (below WR tephra)
• Y04-30-03 – charcoal at 75 cm
  Slide roll 7, #15-13
  Corresponding prints and negatives: Print roll 12, #20A-22A

Y04-31 (EW)
Date: July 23, 2004
Location Coordinates: 61º 3’ 9.2” N, 138º 21’ 30.3’ W, 837.2 m asl (± 6.4 m)
Site Description: crest of N-S esker ridge
Sample Depths & Descriptions: Y04-31-01: 0-10 cm
Slide roll 7, #12-11
Corresponding prints and negatives: Print roll 13, #1-3

Y04-32
Date: July 23, 2004
Location Coordinates: 61º 3’ 7.4” N, 138º 21’ 27.7’ W, 823.7 m asl (± 13.7 m)
Site Description: toeslope on NE side of same ridge as for Y04-31; 20° slope, NE aspect; Cryosol with permafrost at 34 cm; 30 cm of forest floor organic horizons; abundant charred wood fragments at top of mineral soil & in lowest part of organic horizon.
Slide roll 7, #10-9
Corresponding prints and negatives: Print roll 13, #4-5

Y04-34
Date: July 23, 2004
Location Coordinates: 61º 3’ 47.7” N, 138º 21’ 2.5’ W, 838 m asl
Site Description: Toe of 30º, W-facing grassland slope. Colluviated loess with White River tephra at 8-9 cm, brownish paleosol (9-35 cm), overlying sandy glaciofluvial at 35-70 cm+.
Sample Depths & Descriptions: Y04-34-01: charcoal at 34 cm
Slide roll 7, #8-7
Corresponding prints and negatives: Print roll 13, #6-7

Y04-35 (EW)
Date: July 23, 2004
Location Coordinates: 61º 3’ 49.9” N, 138º 21’ 1.1” W, 854.4 m asl (± 6.3 m)
Sample Depths & Descriptions: Y04-35-01: 0 – 10 cm
Slide roll 7, #6-5
Corresponding prints and negatives: Print roll 13, #8-10
(Location not recorded: Print roll 13, #11-12)

Y04-36
Date: July 23, 2004
Location Coordinates: 61º 8’ 11.5” N, 138º 25’ 50.8” W, 825.6 m asl (± 14.5 m)
Site Description:

• 10-0 cm - LF
• 0-15 cm - Bmk1 (7.5YR 4/6 m)
• 15-28 cm - Bmk2 (2.5Y 4/3 m)
• 28-48 cm - Ck
• 48-55 cm+ - IICk (sandy gravelly glaciofluvial)
• No charcoal visible in mineral horizons
  Slide roll 7, #4-3
  Corresponding prints and negatives: Print roll 13, #13-14

Y04-37
Date: July 23, 2004
Location Coordinates: (roadcut adjacent to Y04-36)
Site Description: multiple colour bands in Slims soil; some charcoal blobs (not sampled) which are right size to have been roots.
Slide roll 7, # 2-1
Corresponding prints and negatives: Print roll 13, #15-19

These images were obtained on the helicopter flights to and from the Klutlan Glacier study site. The outbound sequence (#5590-5706) starts from the base camp at the White River crossing on the Alaska Highway and heads south, to a point just upvalley of the debris-covered terminus (approx. 10-15 km from Alaska border), and turning back north to the landing spot on the Generc River floodplain close to the study site (see Fig. 1 in paper). On the return leg at the end of the day, the flight initially went upvalley to pick up another party (#5884-5926), before turning north and returning to base camp (#5929-5993).