
Organized by GRSS (Geoscience and Remote Sensing Society)
Washington Hilton offers a contemporary urban retreat in the heart of D.C.’s most sought-after neighborhoods, including Dupont Circle, Adams Morgan, U Street Corridor, and Embassy Row. Since its opening in 1965, the historic hotel has been host to presidents, dignitaries, notable figures, and prestigious events. The property boasts 118,000 square feet of meeting and event space, including its legendary 30,000 square-foot International Ballroom, as well as 1,107 guest rooms. Washington Hilton features a seasonal outdoor heated pool deck and kids pool, complete with an unobstructed view of the Washington Monument; a 11,000 square foot courtyard with fire pits and water feature; a state-of-the-art health club, offering a range of exercise classes and equipment; on-site Monumental Tours representative; Fedex Office Business Center; on-site parking and Hertz Car Rental. An experienced concierge is available to guests to make local recommendations and reservations. The hotel has four distinctive on-site dining outlets; Four Oaks, Sidecar, McClellan’s Sports Bar, and District Line Café & Market. Washington Hilton has continued its longstanding commitment to enhancements and renovations with updates to its meeting space and premium suites. In 2024, all Lobby, Terrace, and Concourse level meeting rooms were refurbished with new carpet and vinyl. The Presidential, Dupont, and Kalorama Suites have been completely renovated including all-new furniture. In 2021, the iconic International Ballroom received an update with new carpet installation.
| Terrace Foyer (Terrace Level) | 911 | — | — |
| Columbia 06 & 08 | 356 | 450 | 4.572 m |
| Tenleytown East | 95 | 102 | 2.1336 m |
| Jay | 71 | 72 | 3.048 m |
| Convention Office 6 (Terrace Level) | 32 | — | 3.2918400000000005 m |
| Lincoln | 370 | 500 | 3.048 m |
| Holmead West | 67 | 76 | 3.048 m |
| Georgetown East | 137 | 149 | 3.048 m |
| Columbia 01 - 04 | 334 | 426 | 3.3528000000000002 m |
| International Ballroom West | 785 | 800 | 8.2296 m |
| Boundary | 21 | 10 | 3.048 m |
| DuPont | 46 | 64 | 3.048 m |
| Convention Office 3 (Concourse Level) | 15 | — | 2.7432000000000003 m |
| Monroe | 179 | 250 | 3.048 m |
| Jefferson East, Lincoln & Monroe | 725 | 950 | 3.048 m |
| Convention Office 5 (Terrace Level) | 8 | — | 2.4384 m |
| Columbia 01 - 06 | 646 | 860 | 3.3528000000000002 m |
| Columbia 02 | 80 | 104 | 3.3528000000000002 m |
| Columbia 03, 04 & 06 | 317 | 440 | 3.3528000000000002 m |
| Convention Office 1 (Concourse Level) | 11 | — | 2.7432000000000003 m |
| Jefferson East & Lincoln West | 374 | 500 | 3.048 m |
| Jefferson West | 187 | 250 | 3.048 m |
| Gunston East | 46 | 72 | 3.048 m |
| Columbia 12 | 83 | 105 | 4.572 m |
| Columbia 03 & 04 | 164 | 220 | 3.3528000000000002 m |
| Gunston West | 46 | 64 | 3.048 m |
| Columbia 06 | 153 | 210 | 4.572 m |
| Mother's Room (Terrace Level) | 11 | — | 3.048 m |
| Columbia 07 | 158 | 210 | 4.572 m |
| Heights Courtyard East (Lobby Level/Outdoors) | 234 | 200 | — |
| Jefferson East & Lincoln | 561 | 715 | 3.048 m |
| Heights Courtyard West (Lobby Level/Outdoors) | 291 | 320 | — |
| Fairchild West | 46 | 63 | 3.048 m |
| Columbia 10 | 80 | 104 | 3.3528000000000002 m |
| International Ballroom West & Center | 2,759 | 3,100 | 9.144 m |
| Coats (Terrace Level) | 64 | 50 | 2.4384 m |
| Columbia 05 | 158 | 210 | 4.572 m |
| International Ballroom | 2,777 | 4,150 | 9.144 m |
| Van Ness | 66 | 72 | 2.1336 m |
| Rock Creek | 151 | 110 | 2.1336 m |
| Tenleytown | 208 | 150 | 2.1336 m |
| Columbia 04 | 83 | 105 | 3.3528000000000002 m |
| Fairchild | 92 | 126 | 3.048 m |
| Columbia 07 - 12 | 646 | 806 | 3.3528000000000002 m |
| Fairchild East | 46 | 63 | 3.048 m |
| Tenleytown West | 110 | 106 | 2.1336 m |
| Oak Lawn | 77 | 80 | 3.048 m |
| Columbia 09 & 10 | 170 | 220 | 3.3528000000000002 m |
| Heights Courtyard Ctr (Lobby Level/Outdoors) | 515 | 320 | — |
| Columbia 1-12 (Terrace Level) | 1,413 | 1,749 | 3.3528000000000002 m |
| Columbia 08, 11 & 12 | 317 | 440 | 3.3528000000000002 m |
| Northwest | 74 | 73 | 3.048 m |
| International Ballroom East | 785 | 800 | 9.144 m |
| Concourse Foyer | 951 | 1,000 | 2.7432000000000003 m |
| International Ballroom East & Center | 2,759 | 3,100 | 9.144 m |
| Columbia 07, 09 & 10 | 328 | 440 | 3.3528000000000002 m |
| Columbia North (Terrace Level) | 485 | 450 | 3.3528000000000002 m |
| International Terrace | 1,254 | 1,800 | 3.048 m |
| Jefferson | 374 | 500 | 3.048 m |
| Columbia 01, 02 & 05 | 328 | 440 | 3.3528000000000002 m |
| Jefferson & Lincoln West | 561 | 715 | 3.048 m |
| Holmead | 159 | 160 | 3.048 m |
| Kalorama | 153 | 162 | 3.048 m |
| Columbia 01 & 02 | 170 | 220 | 3.3528000000000002 m |
| Columbia 09 | 89 | 112 | 3.3528000000000002 m |
| Convention Office 2 (Concourse Level) | 11 | — | 2.7432000000000003 m |
| Columbia | 2,787 | 3,448 | 3.3528000000000002 m |
| Woodley | 120 | 52 | 2.1336 m |
| Columbia 05 - 08 | 724 | 910 | 4.572 m |
| Columbia 11 & 12 | 164 | 220 | 3.3528000000000002 m |
| Piscataway | 71 | 74 | 3.048 m |
| Holmead East | 87 | 84 | 3.048 m |
| Columbia 11 | 80 | 104 | 4.572 m |
| Executive Lounge (Lobby Level) | 167 | — | 3.26136 m |
| International Ballroom Center | 1,549 | 2,300 | 9.144 m |
| Morgan | 79 | 82 | 3.048 m |
| Albright | 44 | 58 | 3.048 m |
| Gunston | 92 | 136 | 3.048 m |
| Columbia 01 | 89 | 112 | 3.3528000000000002 m |
| Embassy | 46 | 63 | 3.048 m |
| Convention Office 4 (Terrace Level) | 8 | — | 2.4384 m |
| Cabinet | 141 | 166 | 3.048 m |
| Lincoln & Monroe | 538 | 715 | 3.048 m |
| Cardozo | 53 | 81 | 3.048 m |
| Columbia West (Terrace Level) | 758 | 700 | 3.3528000000000002 m |
| Columbia 03 | 80 | 104 | 3.3528000000000002 m |
| Georgetown | 274 | 296 | 3.048 m |
| Columbia 05 & 07 | 368 | 455 | 4.572 m |
| Jefferson East | 187 | 250 | 3.048 m |
| Heights Courtyard (Lobby Level/Outdoors) | 1,040 | 840 | — |
| Columbia 08 | 153 | 210 | 3.3528000000000002 m |
| Jefferson, Lincoln & Monroe | 913 | 1,150 | 3.048 m |
| Jefferson & Lincoln | 749 | 950 | 3.048 m |
| Lincoln East | 187 | 250 | 3.048 m |
| President's Walk (Concourse Level) | 287 | — | 2.7432000000000003 m |
| Georgetown West | 137 | 146 | 3.048 m |
| Shaw | 115 | 96 | 2.1336 m |
| Lincoln East & Monroe | 351 | 500 | 3.048 m |
| Lincoln West | 187 | 250 | 3.048 m |
| U Street | 82 | 36 | 2.1336 m |