11. Gasherbrum I Base Camp Trek (Pakistan)

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The route to Gasherbrum I, the world’s eleventh‑highest peak,  follows the same approach used for K2 and Broad Peak base camps. From  Concordia—where several major glaciers converge—the Abruzzi and  Gasherbrum Glaciers provide access to the famous Gasherbrum cluster of  peaks and common base camp for Gasherbrum I and II.

Photo credit: Olaf Rieck (Wikipedia)

• Summit elevation: 8,080 m
• Base camp altitude: 5,150 m 
• Highest trekking point: Gasherbrum 1 & II Base Camp
• Duration: 16-20 days 
• Difficulty rating: Very hard
• Best time to go: June-September
• Starting point: Askole, Pakistan
• Total trekking distance (return): Approx. 160-180 km

(Same approach route for K2 and Broad Peak base camps)

• Day 1: Fly Islamabad (666 m) to Skardu (2,230 m)
• Day 2: Drive Skardu to Askole (3,040 m)
• Day 3: Askole to Jhola (3,200 m)
• Day 4: Jhola to Paiju (3,400 m)
• Day 5: Rest / acclimatization at Paiju (3,400 m)
• Day 6: Paiju to Urdukas (4,050 m)
• Day 7: Urdukas to Goro II (4,380 m)
• Day 8: Goro II to Concordia (4,600 m)
• Day  9: Concordia to Gasherbrum I/II Base Camp (5,150 m), return to  Concordia
• Day 10: Concordia to Goro II (4,380 m)
• Day 11: Goro II to Urdukas (4,050 m)
• Day 12: Urdukas to Paiju (3,400 m)
• Day 13: Paiju to Jhola (3,200 m)
• Day 14: Jhola to Askole (3,040 m)
• Day 15: Drive to Skardu (2,228 m)
• Day 16: Fly Skardu to Islamabad (666 m)