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 Sampl-year Publ-10-age(yr) Publ-10-unc(yr) Publ-26-age(yr) Publ-26-unc(yr) 10Be-age(yr) 10-ext-unc(yr) 10-int-unc(yr) 26Al-age(yr) 26-ext-unc(yr) 26-int-unc(yr) Extra-publ Young et al. (2020b) boulder Youn2020b-1 Sinc2019-A 17GRO-01 64.75141 -49.56120 748 1.5 2.65 1 77994 2755 07KNSTD 0 0 0 2017 8730 310 - - 8350 594 296 - - - - Young et al. (2020b) boulder Youn2020b-2 Sinc2019-A 17GRO-02 64.75278 -49.55141 726 2 2.65 1 76160 2708 07KNSTD 0 0 0 2017 8730 310 - - 8356 595 298 - - - - Young et al. (2020b) boulder Youn2020b-3 Sinc2019-A 17GRO-04 64.77811 -49.54660 856 2 2.65 1 89563 3162 07KNSTD 0 0 0 2017 9140 320 - - 8750 622 310 - - - - Young et al. (2020b) boulder Youn2020b-4 Youn2020b-A 17GRO-49 63.97643 -49.51587 931 2.5 2.65 1 111924 3486 07KNSTD 0 0 0 2017 10730 340 - - 10278 711 321 - - - - Young et al. (2020b) boulder Youn2020b-5 Youn2020b-A 17GRO-51 63.97548 -49.51407 928 3 2.65 1 99409 3310 07KNSTD 0 0 0 2017 9590 320 - - 9189 645 307 - - - - Young et al. (2020b) boulder Youn2020b-6 Youn2020b-B 17GRO-53 63.91561 -49.69950 900 3 2.65 1 166707 4970 07KNSTD 0 0 0 2017 16500 490 - - 15859 1089 475 - - - - Young et al. (2020b) boulder Youn2020b-7 Youn2020b-B 17GRO-54 63.90542 -49.67972 885 2 2.65 1 78459 2640 07KNSTD 0 0 0 2017 7790 260 - - 7468 525 252 - - - - Young et al. (2020b) boulder Youn2020b-8 Youn2020b-C 17GRO-46 64.45596 -49.45530 769 1.3 2.65 1 94977 2772 07KNSTD 0 0 0 2017 10410 310 - - 9995 683 292 - - - - Young et al. (2020b) boulder Youn2020b-9 Youn2020b-C 17GRO-47 64.45605 -49.45560 763 2.04 2.65 1 91901 2617 07KNSTD 0 0 0 2017 10190 290 - - 9783 665 279 - - - - Young et al. (2020b) boulder Youn2020b-10 Youn2020b-C 17GRO-48 64.45573 -49.45563 767 2.94 2.65 1 93953 2869 07KNSTD 0 0 0 2017 10460 320 - - 10047 692 308 - - - - Young et al. (2020b) boulder Youn2020b-11 Youn2020b-D 17GRO-15 64.45831 -49.44410 751 3.02 2.65 1 98440 3634 07KNSTD 0 0 0 2017 11080 410 - - 10701 770 396 - - - - Young et al. (2020b) boulder Youn2020b-12 Youn2020b-D 17GRO-16 64.45847 -49.44398 753 1.28 2.65 1 84198 2508 07KNSTD 0 0 0 2017 9470 280 - - 8983 616 268 - - - - Young et al. (2020b) boulder Youn2020b-13 Youn2020b-D 17GRO-17 64.45937 -49.43946 783 1.39 2.65 1 88777 3350 07KNSTD 0 0 0 2017 9580 360 - - 9227 668 349 - - - - Young et al. (2020b) boulder Youn2020b-14 Youn2020b-D 17GRO-18 64.45869 -49.43322 767 1.2 2.65 1 87519 2562 07KNSTD 0 0 0 2017 9720 280 - - 9214 630 270 - - - - Young et al. (2020b) boulder Youn2020b-15 Youn2020b-D 17GRO-19 64.45899 -49.43517 771 3.14 2.65 1 130625 3187 07KNSTD 0 0 0 2017 14700 360 - - 13989 930 342 - - - - Young et al. (2020b) boulder Youn2020b-16 Youn2020b-D 17GRO-20 64.45869 -49.43216 769 3.2 2.65 1 104161 2863 07KNSTD 0 0 0 2017 11740 320 - - 11168 755 308 - - - - Young et al. (2020b) boulder Youn2020b-17 Youn2020b-D 17GRO-28 64.46225 -49.42881 811 2.48 2.65 1 191011 4242 07KNSTD 0 0 0 2017 20410 450 - - 19640 1292 438 - - - - Young et al. (2020b) boulder Youn2020b-18 Youn2020b-D 17GRO-29 64.46424 -49.42605 817 1.19 2.65 1 89844 2666 07KNSTD 0 0 0 2017 9430 280 - - 9038 619 269 - - - - Young et al. (2020b) boulder Youn2020b-19 Youn2020b-D 17GRO-31 64.46506 -49.42405 822 1.76 2.65 1 159706 3802 07KNSTD 0 0 0 2017 16790 400 - - 16145 1070 386 - - - - Young et al. (2020b) boulder Youn2020b-20 Youn2020b-D 17GRO-32 64.46567 -49.42298 823 2.18 2.65 1 88192 2629 07KNSTD 0 0 0 2017 9280 280 - - 8897 610 266 - - - - Young et al. (2020b) boulder Youn2020b-21 Youn2020b-D 17GRO-34 64.46509 -49.43287 835 2.13 2.65 1 89304 2656 07KNSTD 0 0 0 2017 9400 280 - - 8908 610 266 - - - - Young et al. (2020b) boulder Youn2020b-22 Youn2020b-D 17GRO-35 64.46796 -49.43473 835 1.02 2.65 1 94602 2792 07KNSTD 0 0 0 2017 9870 290 - - 9347 640 277 - - - - Young et al. (2020b) boulder Youn2020b-23 Youn2020b-D 17GRO-36 64.46804 -49.43491 868 1.11 2.65 1 95356 2792 07KNSTD 0 0 0 2017 9670 280 - - 9155 626 269 - - - - Young et al. (2020b) boulder Youn2020b-24 Youn2020b-D 17GRO-37 64.46714 -49.43700 867 2.8 2.65 1 99725 3596 07KNSTD 0 0 0 2017 10140 370 - - 9722 695 351 - - - - Young et al. (2020b) boulder Youn2020b-25 Youn2020b-D 17GRO-38 64.46686 -49.43781 861 1.4 2.65 1 88883 1985 07KNSTD 0 0 0 2017 8980 200 - - 8591 564 192 - - - - Young et al. (2020b) boulder Youn2020b-26 Youn2020b-D 17GRO-39 64.46519 -49.44123 810 1.28 2.65 1 91435 2328 07KNSTD 0 0 0 2017 9660 250 - - 9264 619 236 - - - - Young et al. (2020b) boulder Youn2020b-27 Youn2020b-D 17GRO-40 64.46251 -49.44231 769 2.2 2.65 1 86774 2545 07KNSTD 0 0 0 2017 9580 280 - - 9198 629 270 - - - - Young et al. (2020b) boulder Youn2020b-28 Youn2020b-D 17GRO-41 64.46290 -49.44788 759 1.37 2.65 1 87861 2508 07KNSTD 0 0 0 2017 9720 280 - - 9330 635 267 - - - - Young et al. (2020b) boulder Youn2020b-29 Youn2020b-D 17GRO-42 64.46244 -49.45117 757 2.71 2.65 0.999 90943 2535 07KNSTD 0 0 0 2017 10200 280 - - 9801 664 274 - - - - Young et al. (2020b) boulder Youn2020b-30 Youn2020b-D 17GRO-44 64.46081 -49.44620 767 2.85 2.65 0.999 90979 3027 07KNSTD 0 0 0 2017 10130 340 - - 9724 682 324 - - - - Young et al. (2020b) boulder Youn2020b-31 Youn2020b-D 17GRO-45 64.46078 -49.44607 766 2.56 2.65 0.999 83812 2505 07KNSTD 0 0 0 2017 9310 280 - - 8943 613 268 - - - - Young et al. (2020b) boulder Youn2020b-32 Youn2020b-E 17GRO-25 64.46959 -49.42904 839 1.52 2.65 1 89925 2530 07KNSTD 0 0 0 2017 9280 260 - - 8890 603 251 - - - - Young et al. (2020b) boulder Youn2020b-33 Youn2020b-E 17GRO-26 64.46943 -49.43203 857 1.61 2.65 1 92665 2603 07KNSTD 0 0 0 2017 9420 270 - - 9023 612 254 - - - - Young et al. (2020b) boulder Youn2020b-34 Youn2020b-E 17GRO-27 64.46996 -49.43845 824 2.12 2.65 1 89261 2853 07KNSTD 0 0 0 2017 9380 300 - - 8993 625 288 - - - - Young et al. (2020b) boulder Youn2020b-35 Youn2020b-F 17GRO-05 64.28653 -49.48825 790 1.71 2.65 1 93272 2192 07KNSTD 0 0 0 2017 10060 240 - - 9652 638 227 - - - - Young et al. (2020b) boulder Youn2020b-36 Youn2020b-F 17GRO-06 64.28651 -49.48830 790 2.32 2.65 1 95460 2243 07KNSTD 0 0 0 2017 10350 240 - - 9941 657 234 - - - - Young et al. (2020b) boulder Youn2020b-37 Youn2020b-F 17GRO-07 64.28658 -49.48794 788 1.6 2.65 1 119635 5326 07KNSTD 0 0 0 2017 12930 580 - - 12441 948 556 - - - - Young et al. (2020b) boulder Youn2020b-38 Youn2020b-G 17GRO-61 64.28960 -49.80013 660 2.9 2.65 1 93966 2778 07KNSTD 0 0 0 2017 11510 340 - - 11095 760 329 - - - - Young et al. (2020b) boulder Youn2020b-39 Youn2020b-G 17GRO-69 64.29240 -49.79993 685 1.49 2.65 1 94763 2841 07KNSTD 0 0 0 2017 11210 340 - - 10797 741 325 - - - - Young et al. (2020b) boulder Youn2020b-40 Youn2020b-G 17GRO-70 64.29148 -49.79569 655 5.12 2.65 1 82228 3354 07KNSTD 0 0 0 2017 10300 420 - - 9919 734 406 - - - - Young et al. (2020b) boulder Youn2020b-41 Youn2020b-H 17GRO-56 64.29505 -49.78128 774 1.87 2.65 1 93336 3904 07KNSTD 0 0 0 2017 10220 430 - - 9817 733 412 - - - - Young et al. (2020b) boulder Youn2020b-42 Youn2020b-H 17GRO-58 64.29417 -49.79294 693 2.79 2.65 1 95095 2932 07KNSTD 0 0 0 2017 11290 350 - - 10881 751 336 - - - - Young et al. (2020b) boulder Youn2020b-43 Youn2020b-H 17GRO-59 64.29485 -49.79568 694 2.22 2.65 1 89530 3061 07KNSTD 0 0 0 2017 10570 360 - - 10164 718 348 - - - - Young et al. (2020b) boulder Youn2020b-44 Youn2020b-H 17GRO-62 64.29332 -49.80750 626 3.12 2.65 0.991 42742 1803 07KNSTD 0 0 0 2017 5450 230 - - 5290 395 223 - - - - Young et al. (2020b) boulder Youn2020b-45 Youn2020b-H 17GRO-63 64.29415 -49.80329 669 3.04 2.65 1 56001 1474 07KNSTD 0 0 0 2017 6800 180 - - 6577 441 173 - - - - Young et al. (2020b) boulder Youn2020b-46 Youn2020b-H 17GRO-64 64.29420 -49.80260 671 1.89 2.65 1 87605 3264 07KNSTD 0 0 0 2017 10530 390 - - 10129 731 378 - - - - Young et al. (2020b) boulder Youn2020b-47 Youn2020b-H 17GRO-66 64.29460 -49.79980 683 3.29 2.65 1 82366 2345 07KNSTD 0 0 0 2017 9910 280 - - 9522 647 272 - - - - Young et al. (2020b) boulder Youn2020b-48 Youn2020b-I 17GRO-67 64.29749 -49.80284 662 2.42 2.65 1 84750 2590 07KNSTD 0 0 0 2017 10320 320 - - 9926 684 304 - - - - Young et al. (2020b) boulder Youn2020b-49 Youn2020b-I 17GRO-68 64.29739 -49.80359 660 2.94 2.65 1 84396 2401 07KNSTD 0 0 0 2017 10340 290 - - 9947 676 284 - - - - Young et al. (2020b) boulder Youn2020b-50 Youn2020b-J 17GRO-08 64.28653 -49.48321 769 2.04 2.65 1 158742 4249 07KNSTD 1065240 38006 KNSTD 2017 17530 470 - - 16876 1138 454 16364 1421 589 - Young et al. (2020b) boulder Youn2020b-51 Youn2020b-J 17GRO-09 64.28315 -49.47899 772 1.77 2.65 1 156733 4026 07KNSTD 1128431 21620 KNSTD 2017 17220 440 - - 16577 1111 428 17255 1405 333 - Young et al. (2020b) boulder Youn2020b-52 Youn2020b-J 17GRO-10 64.28052 -49.47035 675 1.19 2.65 1 109163 2601 07KNSTD 760447 25647 KNSTD 2017 13020 310 - - 12543 831 300 12604 1083 428 - Young et al. (2020b) boulder Youn2020b-53 Youn2020b-J 17GRO-11 64.28105 -49.46340 638 1.48 2.65 0.993 80569 1972 07KNSTD 595722 26652 KNSTD 2017 10020 250 - - 9632 640 236 10275 932 462 - Young et al. (2020b) boulder Youn2020b-54 Youn2020b-J 17GRO-12 64.28090 -49.45737 591 1.36 2.65 0.993 184334 4058 07KNSTD 1238250 38666 KNSTD 2017 24000 530 - - 23138 1522 512 22451 1916 709 - Young et al. (2020b) boulder Youn2020b-55 Youn2020b-J 17GRO-13 64.28094 -49.45633 600 1.68 2.65 0.993 117860 3111 07KNSTD 708831 29721 KNSTD 2017 15230 400 - - 14685 987 389 12726 1139 537 - Young et al. (2020b) boulder Youn2020b-56 Youn2020b-J 17GRO-14 64.28088 -49.45694 599 1.17 2.65 0.993 154381 3062 07KNSTD 1065557 30564 KNSTD 2017 19900 400 - - 19186 1247 382 19117 1611 554 - Young et al. (2020b) boulder Youn2020b-57 Youn2020b-J 17GRO-71 64.28185 -49.45657 600 0.88 2.65 1 54215 1302 07KNSTD 398413 17757 KNSTD 2017 6900 170 - - 6664 441 160 7045 638 315 - Young et al. (2020b) boulder Youn2020b-58 Youn2020b-J 17GRO-72 64.22263 -49.58746 461 2.89 2.65 1 47598 1100 07KNSTD 332019 12708 KNSTD 2017 7010 160 - - 6776 446 157 6794 595 261 - Young et al. (2020b) boulder Youn2020b-59 Youn2020b-J 17GRO-73 64.22220 -49.58950 458 1.67 2.65 1 46618 1106 07KNSTD 325062 16412 KNSTD 2017 6810 160 - - 6587 435 157 6601 618 334 - Young et al. (2020b) boulder Youn2020b-60 Youn2020b-J 17GRO-74 64.22466 -49.58567 483 1.32 2.65 1 46234 1015 07KNSTD 337103 13339 KNSTD 2017 6580 140 - - 6363 417 140 6668 588 265 - Young et al. (2020b) boulder Youn2020b-61 Youn2020b-J 17GRO-75 64.22476 -49.58792 481 3.7 2.65 1 45588 1847 07KNSTD 320105 14378 KNSTD 2017 6630 270 - - 6416 474 260 6476 587 292 - 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, 2020b. Cosmogenic isotope measurements from recently deglaciated bedrock as a new tool to decipher changes in Greenland ice sheet size. Climate of the Past Discussions. 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-202306