"a high bluff at Pebas, on the Ambiyacu River, two miles above its confluence with the Marañon, near the Southern ... [details]
"a high bluff at Pebas, on the Ambiyacu River, two miles above its confluence with the Marañon, near the Southern ... [details]
"a high bluff at Pebas, on the Ambiyacu River, two miles above its confluence with the Marañon, near the Southern ... [details]
"a high bluff at Pebas, on the Ambiyacu River, two miles above its confluence with the Marañon, near the Southern ... [details]
"a high bluff at Pebas, on the Ambiyacu River, two miles above its confluence with the Marañon, near the Southern ... [details]