Publication Sample-type Sample-ID Group-ID Sample Lat(DD) Long(DD) Elev(masl) Thickn(cm) Density(g/cm3) Shield 10Be-conc(at/g) 10Be-unc(at/g) 10Be-std 26Al-conc(at/g) 26Al-unc(at/g) 26Al-std 14C-conc(at/g) 14C-unc(at/g) Sampl-year Publ-10-age(yr) Publ-10-unc(yr) Publ-26-age(yr) Publ-26-unc(yr) Publ-14-age(yr) Publ-14-unc(yr) 10Be-age(yr) 10-ext-unc(yr) 10-int-unc(yr) 26Al-age(yr) 26-ext-unc(yr) 26-int-unc(yr) 14C-age(yr) 14-ext-unc(yr) 14-int-unc(yr) Extra-publ Walcott et al. (2022) boulder Walc2022-1 Walc2022-A 18JB005 56.8482 -135.5314 47 3 2.65 1 66000 2120 07KNSTD - - - - - 2018 15300 500 - - - - 14807 1011 477 - - - - - - - Walcott et al. (2022) boulder Walc2022-2 Walc2022-A 18JB006 56.8471 -135.5315 43 3 2.65 1 64000 2350 07KNSTD - - - - - 2018 14900 600 - - - - 14420 1017 531 - - - - - - - Walcott et al. (2022) boulder Walc2022-3 Walc2022-A 18JB007 56.8527 -135.5363 46 3 2.65 1 66000 2230 07KNSTD - - - - - 2018 15400 500 - - - - 14820 1024 503 - - - - - - - Walcott et al. (2022) boulder Walc2022-4 Walc2022-A 18JB008 56.8528 -135.5362 46 3 2.65 1 59000 1990 07KNSTD - - - - - 2018 13700 500 - - - - 13255 915 449 - - - - - - - Walcott et al. (2022) boulder Walc2022-5 Walc2022-B 19SEAK-07 55.2469 -133.3414 376 2 2.65 0.9958 91900 3970 07KNSTD - - - - - 2019 15600 700 - - - - 15286 1134 663 - - - - - - - Walcott et al. (2022) boulder Walc2022-6 Walc2022-B 19SEAK-08 55.2470 -133.3419 392 2 2.65 0.9984 90300 6800 07KNSTD - - - - - 2019 15000 1100 - - - - 14774 1427 1117 - - - - - - - Walcott et al. (2022) boulder Walc2022-7 Walc2022-B 19SEAK-09 55.2477 -133.3406 394 2 2.65 1 105000 7440 07KNSTD - - - - - 2019 17400 1200 - - - - 17073 1591 1215 - - - - - - - Walcott et al. (2022) bedrock Walc2022-8 Walc2022-B 19SEAK-10 55.2477 -133.3406 419 3 2.65 1 121000 7550 07KNSTD - - - - - 2019 19700 1200 - - - - 19349 1682 1213 - - - - - - - Walcott et al. (2022) boulder Walc2022-9 Walc2022-C 19SEAK-17 56.3677 -134.9015 140 2 2.65 0.9923 80200 3840 07KNSTD - - - - - 2019 16900 800 - - - - 16493 1271 793 - - - - - - - Walcott et al. (2022) bedrock Walc2022-10 Walc2022-C 19SEAK-18 56.3723 -134.9084 129 2 2.65 1 102000 4270 07KNSTD - - - - - 2019 21700 900 - - - - 20957 1540 882 - - - - - - - Walcott et al. (2022) bedrock Walc2022-11 Walc2022-C 19SEAK-19 56.3718 -134.9094 126 2 2.65 1 131000 5050 07KNSTD - - - - - 2019 28000 1100 - - - - 26909 1931 1044 - - - - - - - Walcott et al. (2022) boulder Walc2022-12 Walc2022-C 19SEAK-20 56.3712 -134.9082 135 2 2.65 1 68000 3470 07KNSTD - - - - - 2019 14400 700 - - - - 13979 1104 716 - - - - - - - Walcott et al. (2022) boulder Walc2022-13 Walc2022-D 19SEAK-21 56.3636 -134.9068 48 2 2.65 1 62300 2840 07KNSTD - - - - - 2019 14400 700 - - - - 13919 1052 637 - - - - - - - Walcott et al. (2022) bedrock Walc2022-14 Walc2022-D 19SEAK-22 56.3636 -134.9072 58 2 2.65 0.9749 61300 2360 07KNSTD - - - - - 2019 14400 600 - - - - 13914 995 538 - - - - - - - Walcott et al. (2022) boulder Walc2022-15 Walc2022-D 19SEAK-23 56.3638 -134.9092 68 2 2.65 0.9911 66000 2510 07KNSTD - - - - - 2019 15100 600 - - - - 14588 1040 557 - - - - - - - Walcott et al. (2022) boulder Walc2022-16 Walc2022-E 19SEAK-24 56.3228 -134.8920 150 1.5 2.65 1 78300 2630 07KNSTD - - - - - 2019 16300 500 - - - - 15773 1088 532 - - - - - - - Walcott et al. (2022) bedrock Walc2022-17 Walc2022-E 19SEAK-25 56.3231 -134.8916 163 1.5 2.65 1 76800 2670 07KNSTD - - - - - 2019 15700 600 - - - - 15288 1064 534 - - - - - - - Walcott et al. (2022) bedrock Walc2022-18 Walc2022-F 19SEAK-26 56.3554 -134.8856 145 2 2.65 0.9879 85600 3470 07KNSTD - - - - - 2019 18200 700 - - - - 17584 1278 716 - - - - - - - Walcott et al. (2022) bedrock Walc2022-19 Walc2022-F 19SEAK-27 56.3555 -134.8855 142 1.5 2.65 0.9963 95900 3670 07KNSTD - - - - - 2019 20200 800 - - - - 19478 1392 749 - - - - - - - Walcott et al. (2022) boulder Walc2022-20 Walc2022-G 20SEAK-7 57.3112 -135.8126 558 1.5 2.65 0.9976 105000 5590 07KNSTD - - - - - 2020 14900 800 - - - - 14396 1158 769 - - - - - - - Walcott et al. (2022) bedrock Walc2022-21 Walc2022-G 20SEAK-10 57.3112 -135.8111 559 1.5 2.65 0.96912 92300 6500 07KNSTD - - - - - 2020 13400 1000 - - - - 13016 1208 920 - - - - - - - Walcott et al. (2022) boulder Walc2022-22 Walc2022-G 20SEAK-12 57.3110 -135.8110 569 1 2.65 0.9927 106000 4770 07KNSTD - - - - - 2020 14900 700 - - - - 14397 1083 650 - - - - - - - Walcott et al. (2022) boulder Walc2022-23 Walc2022-G 20SEAK-13 57.3109 -135.8109 568.3 1 2.65 0.9941 104000 5650 07KNSTD - - - - - 2020 14600 800 - - - - 14118 1146 770 - - - - - - - Walcott et al. (2022) bedrock Walc2022-24 Walc2022-H 20SEAK-14 57.4621 -135.6354 476 0.5 2.65 1 101000 4800 07KNSTD - - - - - 2020 15300 700 - - - - 14759 1133 704 - - - - - - - Walcott et al. (2022) boulder Walc2022-25 Walc2022-H 20SEAK-15 57.4621 -135.6354 476 1 2.65 1 83800 4500 07KNSTD - - - - - 2020 12700 700 - - - - 12257 989 660 - - - - - - - Walcott et al. (2022) boulder Walc2022-26 Walc2022-H 20SEAK-16 57.4618 -135.6351 473 1.5 2.65 1 59200 3780 07KNSTD - - - - - 2020 9000 600 - - - - 8656 760 554 - - - - - - - Walcott et al. (2022) boulder Walc2022-27 Walc2022-I 20SEAK-18 57.5743 -135.2721 817 3 2.65 1 109000 7990 07KNSTD - - - - - 2020 12400 900 - - - - 11895 1130 875 - - - - - - - Walcott et al. (2022) bedrock Walc2022-28 Walc2022-I 20SEAK-19 57.5743 -135.2720 816 1.5 2.65 1 125000 5810 07KNSTD - - - - - 2020 14100 700 - - - - 13564 1032 633 - - - - - - - Walcott et al. (2022) bedrock Walc2022-29 Walc2022-J 20SEAK-22 57.6425 -135.3483 779 2 2.65 1 152000 6590 07KNSTD - - - - - 2020 17700 800 - - - - 17072 1268 743 - - - - - - - Reference: Walcott CK, Briner JP, Baichtal JF, Lesnek AJ, Licciardi JM, 2022. Cosmogenic ages indicate no MIS 2 refugia in the Alexander Archipelago, Alaska. Geochronology 4, 191-211. https://doi.org/10.5194/gchron-4-191-2022 Data comments: Latitude for sample 19SEAK-17 changed from 55.3677 to 56.3677. Sampling year based on sample names. Group ID based on publication (Table 1). expage.github.io - data from expage-202610