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 Young et al. (2021b) boulder Youn2021b-1 Sinc2019-A 17GRO-01 64.75141 -49.56120 748 1.5 2.65 1 77994 2755 07KNSTD - - - - - 2017 8730 310 - - - - 8355 583 296 - - - - - - - Young et al. (2021b) boulder Youn2021b-2 Sinc2019-A 17GRO-02 64.75278 -49.55141 726 2 2.65 1 76160 2708 07KNSTD - - - - - 2017 8730 310 - - - - 8360 584 298 - - - - - - - Young et al. (2021b) boulder Youn2021b-3 Sinc2019-A 17GRO-04 64.77811 -49.54660 856 2 2.65 1 89563 3162 07KNSTD - - - - - 2017 9140 320 - - - - 8758 611 310 - - - - - - - Young et al. (2021b) boulder Youn2021b-4 Youn2021b-A 17GRO-49 63.97643 -49.51587 931 2.5 2.65 1 111924 3486 07KNSTD - - - - - 2017 10730 340 - - - - 10287 697 321 - - - - - - - Young et al. (2021b) boulder Youn2021b-5 Youn2021b-A 17GRO-51 63.97548 -49.51407 928 3 2.65 1 99409 3310 07KNSTD - - - - - 2017 9590 320 - - - - 9195 632 307 - - - - - - - Young et al. (2021b) boulder Youn2021b-6 Youn2021b-B 17GRO-53 63.91561 -49.69950 900 3 2.65 1 166707 4970 07KNSTD - - - - - 2017 16500 490 - - - - 15878 1067 475 - - - - - - - Young et al. (2021b) boulder Youn2021b-7 Youn2021b-B 17GRO-54 63.90542 -49.67972 885 2 2.65 1 78459 2640 07KNSTD - - - - - 2017 7790 260 - - - - 7471 515 252 - - - - - - - Young et al. (2021b) boulder Youn2021b-8 Youn2021b-C 17GRO-46 64.45596 -49.45530 769 1.3 2.65 1 94977 2772 07KNSTD - - - - - 2017 10410 310 - - - - 10000 668 293 - - - - - - - Young et al. (2021b) boulder Youn2021b-9 Youn2021b-C 17GRO-47 64.45605 -49.45560 763 2.04 2.65 1 91901 2617 07KNSTD - - - - - 2017 10190 290 - - - - 9786 651 279 - - - - - - - Young et al. (2021b) boulder Youn2021b-10 Youn2021b-C 17GRO-48 64.45573 -49.45563 767 2.94 2.65 1 93953 2869 07KNSTD - - - - - 2017 10460 320 - - - - 10051 678 308 - - - - - - - Young et al. (2021b) boulder Youn2021b-11 Youn2021b-D 17GRO-15 64.45831 -49.44410 751 3.02 2.65 1 98440 3634 07KNSTD - - - - - 2017 11080 410 - - - - 10705 756 396 - - - - - - - Young et al. (2021b) boulder Youn2021b-12 Youn2021b-D 17GRO-16 64.45847 -49.44398 753 1.28 2.65 1 84198 2508 07KNSTD - - - - - 2017 9470 280 - - - - 8985 603 268 - - - - - - - Young et al. (2021b) boulder Youn2021b-13 Youn2021b-D 17GRO-17 64.45937 -49.43946 783 1.39 2.65 1 88777 3350 07KNSTD - - - - - 2017 9580 360 - - - - 9231 655 349 - - - - - - - Young et al. (2021b) boulder Youn2021b-14 Youn2021b-D 17GRO-18 64.45869 -49.43322 767 1.2 2.65 1 87519 2562 07KNSTD - - - - - 2017 9720 280 - - - - 9217 616 270 - - - - - - - Young et al. (2021b) boulder Youn2021b-15 Youn2021b-D 17GRO-19 64.45899 -49.43517 771 3.14 2.65 1 130625 3187 07KNSTD - - - - - 2017 14700 360 - - - - 13999 909 343 - - - - - - - Young et al. (2021b) boulder Youn2021b-16 Youn2021b-D 17GRO-20 64.45869 -49.43216 769 3.2 2.65 1 104161 2863 07KNSTD - - - - - 2017 11740 320 - - - - 11174 739 308 - - - - - - - Young et al. (2021b) boulder Youn2021b-17 Youn2021b-D 17GRO-28 64.46225 -49.42881 811 2.48 2.65 1 191011 4242 07KNSTD - - - - - 2017 20410 450 - - - - 19664 1263 439 - - - - - - - Young et al. (2021b) boulder Youn2021b-18 Youn2021b-D 17GRO-29 64.46424 -49.42605 817 1.19 2.65 1 89844 2666 07KNSTD - - - - - 2017 9430 280 - - - - 9043 606 269 - - - - - - - Young et al. (2021b) boulder Youn2021b-19 Youn2021b-D 17GRO-31 64.46506 -49.42405 822 1.76 2.65 1 159706 3802 07KNSTD - - - - - 2017 16790 400 - - - - 16163 1047 386 - - - - - - - Young et al. (2021b) boulder Youn2021b-20 Youn2021b-D 17GRO-32 64.46567 -49.42298 823 2.18 2.65 1 88192 2629 07KNSTD - - - - - 2017 9280 280 - - - - 8901 597 266 - - - - - - - Young et al. (2021b) boulder Youn2021b-21 Youn2021b-D 17GRO-34 64.46509 -49.43287 835 2.13 2.65 1 89304 2656 07KNSTD - - - - - 2017 9400 280 - - - - 8913 598 266 - - - - - - - Young et al. (2021b) boulder Youn2021b-22 Youn2021b-D 17GRO-35 64.46796 -49.43473 835 1.02 2.65 1 94602 2792 07KNSTD - - - - - 2017 9870 290 - - - - 9353 626 277 - - - - - - - Young et al. (2021b) boulder Youn2021b-23 Youn2021b-D 17GRO-36 64.46804 -49.43491 868 1.11 2.65 1 95356 2792 07KNSTD - - - - - 2017 9670 280 - - - - 9162 613 269 - - - - - - - Young et al. (2021b) boulder Youn2021b-24 Youn2021b-D 17GRO-37 64.46714 -49.43700 867 2.8 2.65 1 99725 3596 07KNSTD - - - - - 2017 10140 370 - - - - 9731 682 352 - - - - - - - Young et al. (2021b) boulder Youn2021b-25 Youn2021b-D 17GRO-38 64.46686 -49.43781 861 1.4 2.65 1 88883 1985 07KNSTD - - - - - 2017 8980 200 - - - - 8598 551 192 - - - - - - - Young et al. (2021b) boulder Youn2021b-26 Youn2021b-D 17GRO-39 64.46519 -49.44123 810 1.28 2.65 1 91435 2328 07KNSTD - - - - - 2017 9660 250 - - - - 9269 605 237 - - - - - - - Young et al. (2021b) boulder Youn2021b-27 Youn2021b-D 17GRO-40 64.46251 -49.44231 769 2.2 2.65 1 86774 2545 07KNSTD - - - - - 2017 9580 280 - - - - 9201 616 270 - - - - - - - Young et al. (2021b) boulder Youn2021b-28 Youn2021b-D 17GRO-41 64.46290 -49.44788 759 1.37 2.65 1 87861 2508 07KNSTD - - - - - 2017 9720 280 - - - - 9332 621 267 - - - - - - - Young et al. (2021b) boulder Youn2021b-29 Youn2021b-D 17GRO-42 64.46244 -49.45117 757 2.71 2.65 0.999 90943 2535 07KNSTD - - - - - 2017 10200 280 - - - - 9805 650 274 - - - - - - - Young et al. (2021b) boulder Youn2021b-30 Youn2021b-D 17GRO-44 64.46081 -49.44620 767 2.85 2.65 0.999 90979 3027 07KNSTD - - - - - 2017 10130 340 - - - - 9728 669 324 - - - - - - - Young et al. (2021b) boulder Youn2021b-31 Youn2021b-D 17GRO-45 64.46078 -49.44607 766 2.56 2.65 0.999 83812 2505 07KNSTD - - - - - 2017 9310 280 - - - - 8945 601 268 - - - - - - - Young et al. (2021b) boulder Youn2021b-32 Youn2021b-E 17GRO-25 64.46959 -49.42904 839 1.52 2.65 1 89925 2530 07KNSTD - - - - - 2017 9280 260 - - - - 8895 590 251 - - - - - - - Young et al. (2021b) boulder Youn2021b-33 Youn2021b-E 17GRO-26 64.46943 -49.43203 857 1.61 2.65 1 92665 2603 07KNSTD - - - - - 2017 9420 270 - - - - 9030 599 254 - - - - - - - Young et al. (2021b) boulder Youn2021b-34 Youn2021b-E 17GRO-27 64.46996 -49.43845 824 2.12 2.65 1 89261 2853 07KNSTD - - - - - 2017 9380 300 - - - - 8998 613 288 - - - - - - - Young et al. (2021b) boulder Youn2021b-35 Youn2021b-F 17GRO-05 64.28653 -49.48825 790 1.71 2.65 1 93272 2192 07KNSTD - - - - - 2017 10060 240 - - - - 9656 623 227 - - - - - - - Young et al. (2021b) boulder Youn2021b-36 Youn2021b-F 17GRO-06 64.28651 -49.48830 790 2.32 2.65 1 95460 2243 07KNSTD - - - - - 2017 10350 240 - - - - 9945 642 234 - - - - - - - Young et al. (2021b) boulder Youn2021b-37 Youn2021b-F 17GRO-07 64.28658 -49.48794 788 1.6 2.65 1 119635 5326 07KNSTD - - - - - 2017 12930 580 - - - - 12449 933 556 - - - - - - - Young et al. (2021b) boulder Youn2021b-38 Youn2021b-G 17GRO-61 64.28960 -49.80013 660 2.9 2.65 1 93966 2778 07KNSTD - - - - - 2017 11510 340 - - - - 11094 744 329 - - - - - - - Young et al. (2021b) boulder Youn2021b-39 Youn2021b-G 17GRO-69 64.29240 -49.79993 685 1.49 2.65 1 94763 2841 07KNSTD - - - - - 2017 11210 340 - - - - 10797 726 325 - - - - - - - Young et al. (2021b) boulder Youn2021b-40 Youn2021b-G 17GRO-70 64.29148 -49.79569 655 5.12 2.65 1 82228 3354 07KNSTD - - - - - 2017 10300 420 - - - - 9917 721 405 - - - - - - - Young et al. (2021b) boulder Youn2021b-41 Youn2021b-H 17GRO-56 64.29505 -49.78128 774 1.87 2.65 1 93336 3904 07KNSTD - - - - - 2017 10220 430 - - - - 9820 720 412 - - - - - - - Young et al. (2021b) boulder Youn2021b-42 Youn2021b-H 17GRO-58 64.29417 -49.79294 693 2.79 2.65 1 95095 2932 07KNSTD - - - - - 2017 11290 350 - - - - 10882 736 336 - - - - - - - Young et al. (2021b) boulder Youn2021b-43 Youn2021b-H 17GRO-59 64.29485 -49.79568 694 2.22 2.65 1 89530 3061 07KNSTD - - - - - 2017 10570 360 - - - - 10164 703 348 - - - - - - - Young et al. (2021b) boulder Youn2021b-44 Youn2021b-H 17GRO-62 64.29332 -49.80750 626 3.12 2.65 0.991 42742 1803 07KNSTD - - - - - 2017 5450 230 - - - - 5288 388 223 - - - - - - - Young et al. (2021b) boulder Youn2021b-45 Youn2021b-H 17GRO-63 64.29415 -49.80329 669 3.04 2.65 1 56001 1474 07KNSTD - - - - - 2017 6800 180 - - - - 6577 431 173 - - - - - - - Young et al. (2021b) boulder Youn2021b-46 Youn2021b-H 17GRO-64 64.29420 -49.80260 671 1.89 2.65 1 87605 3264 07KNSTD - - - - - 2017 10530 390 - - - - 10128 717 378 - - - - - - - Young et al. (2021b) boulder Youn2021b-47 Youn2021b-H 17GRO-66 64.29460 -49.79980 683 3.29 2.65 1 82366 2345 07KNSTD - - - - - 2017 9910 280 - - - - 9520 633 272 - - - - - - - Young et al. (2021b) boulder Youn2021b-48 Youn2021b-I 17GRO-67 64.29749 -49.80284 662 2.42 2.65 1 84750 2590 07KNSTD - - - - - 2017 10320 320 - - - - 9924 669 304 - - - - - - - Young et al. (2021b) boulder Youn2021b-49 Youn2021b-I 17GRO-68 64.29739 -49.80359 660 2.94 2.65 1 84396 2401 07KNSTD - - - - - 2017 10340 290 - - - - 9945 662 284 - - - - - - - Young et al. (2021b) boulder Youn2021b-50 Youn2021b-J 17GRO-08 64.28653 -49.48321 769 2.04 2.65 1 158742 4249 07KNSTD 1065240 38006 KNSTD - - 2017 17530 470 - - - - 16890 1114 454 16196 1473 582 - - - - Young et al. (2021b) boulder Youn2021b-51 Youn2021b-J 17GRO-09 64.28315 -49.47899 772 1.77 2.65 1 156733 4026 07KNSTD 1128431 21620 KNSTD - - 2017 17220 440 - - - - 16591 1087 428 17078 1465 330 - - - - Young et al. (2021b) boulder Youn2021b-52 Youn2021b-J 17GRO-10 64.28052 -49.47035 675 1.19 2.65 1 109163 2601 07KNSTD 760447 25647 KNSTD - - 2017 13020 310 - - - - 12545 812 300 12470 1123 423 - - - - Young et al. (2021b) boulder Youn2021b-53 Youn2021b-J 17GRO-11 64.28105 -49.46340 638 1.48 2.65 0.993 80569 1972 07KNSTD 595722 26652 KNSTD - - 2017 10020 250 - - - - 9629 625 236 10163 962 457 - - - - Young et al. (2021b) boulder Youn2021b-54 Youn2021b-J 17GRO-12 64.28090 -49.45737 591 1.36 2.65 0.993 184334 4058 07KNSTD 1238250 38666 KNSTD - - 2017 24000 530 - - - - 23144 1487 512 22218 1989 701 - - - - Young et al. (2021b) boulder Youn2021b-55 Youn2021b-J 17GRO-13 64.28094 -49.45633 600 1.68 2.65 0.993 117860 3111 07KNSTD 708831 29721 KNSTD - - 2017 15230 400 - - - - 14684 965 389 12589 1176 531 - - - - Young et al. (2021b) boulder Youn2021b-56 Youn2021b-J 17GRO-14 64.28088 -49.45694 599 1.17 2.65 0.993 154381 3062 07KNSTD 1065557 30564 KNSTD - - 2017 19900 400 - - - - 19190 1218 382 18918 1674 548 - - - - Young et al. (2021b) boulder Youn2021b-57 Youn2021b-J 17GRO-71 64.28185 -49.45657 600 0.88 2.65 1 54215 1302 07KNSTD 398413 17757 KNSTD - - 2017 6900 170 - - - - 6662 431 160 6969 658 312 - - - - Young et al. (2021b) boulder Youn2021b-58 Youn2021b-J 17GRO-72 64.22263 -49.58746 461 2.89 2.65 1 47598 1100 07KNSTD 332019 12708 KNSTD - - 2017 7010 160 - - - - 6770 436 157 6719 615 258 - - - - Young et al. (2021b) boulder Youn2021b-59 Youn2021b-J 17GRO-73 64.22220 -49.58950 458 1.67 2.65 1 46618 1106 07KNSTD 325062 16412 KNSTD - - 2017 6810 160 - - - - 6581 425 156 6528 636 331 - - - - Young et al. (2021b) boulder Youn2021b-60 Youn2021b-J 17GRO-74 64.22466 -49.58567 483 1.32 2.65 1 46234 1015 07KNSTD 337103 13339 KNSTD - - 2017 6580 140 - - - - 6358 407 140 6595 608 262 - - - - Young et al. (2021b) boulder Youn2021b-61 Youn2021b-J 17GRO-75 64.22476 -49.58792 481 3.7 2.65 1 45588 1847 07KNSTD 320105 14378 KNSTD - - 2017 6630 270 - - - - 6410 465 260 6404 606 289 - - - - Reference: Young NE, Lesnek AJ, Cuzzone JK, Briner JP, Badgeley JA, Balter-Kennedy A, Graham BL, Cluett A, Lamp JL, Schwartz R, Tuna T, Bard E, Caffee MW, Zimmerman SRH, Schaefer JM, 2021b. In situ cosmogenic 10Be–14C–26Al measurements from recently deglaciated bedrock as a new tool to decipher changes in Greenland ice sheet size. Climate of the Past 17, 419–450. https://doi.org/10.5194/cp-17-419-2021 Data comments: All sample data present in publication. Group ID based on publication (Table S3) although split into two groups based on location for groups Youn2020b-F and Youn2020b-G. Three samples grouped with Sinclair et al. (2019) samples. expage.github.io - data from expage-202610