Grand Canyon NPS:
Grand Canyon Trail of Time 20100911mq_6404a
Grand Canyon NPS:
Grand Canyon Trail of Time 201009mq_7217
Grand Canyon NPS:
Grand Canyon Trail of Time Logo
Grand Canyon NPS:
Grand Canyon Trail of Time 20100911mq_6393
Grand Canyon NPS:
Grand Canyon Trail of Time 201009mq_0231
Grand Canyon NPS:
Grand Canyon Trail of Time 201009mq_0242
Grand Canyon NPS:
Grand Canyon Trail of Time - River-polished rock 0237
Grand Canyon NPS:
Grand Canyon Trail of Time 201009mq_0232
Grand Canyon NPS:
Grand Canyon Trail of Time 201010mq_0224
Grand Canyon NPS:
Grand Canyon Trail of Time 0101009mq_0308
Grand Canyon NPS:
Grand Canyon Trail of Time 0101009mq_0305
Grand Canyon NPS:
Grand Canyon Trail of Time - Rama schist - 0289
Grand Canyon NPS:
Grand Canyon Trail of Time - Vishnu schist - 0284
Grand Canyon NPS:
Grand Canyon Trail of Time 0101009mq_0280
Grand Canyon NPS:
Grand Canyon Trail of Time 0101009mq_0278
Grand Canyon NPS:
Grand Canyon Trail of Time - Folded Vishnu basement rock 0277
Grand Canyon NPS:
Grand Canyon Trail of Time 0101009mq_0265
Grand Canyon NPS:
Grand Canyon Trail of Time - Phantom granite - 0259
Grand Canyon NPS:
Grand Canyon Trail of Time - Cremation pegmatite 0248
Grand Canyon NPS:
Grand Canyon Trail of Time - Ruby gabbro - 0245
Grand Canyon NPS:
Grand Canyon Trail of Time 0101009mq_0243
Grand Canyon NPS:
Grand Canyon Trail of Time 0101009mq_0239
Grand Canyon NPS:
Grand Canyon Trail of Time - Elves Chasm gneiss 0300
Grand Canyon NPS:
Grand Canyon Trail of Time Dedication 0101013mq_0465-Panorama
Grand Canyon NPS:
Grand Canyon Trail of Time Dedication 0101013mq_0558
Grand Canyon NPS:
Grand Canyon Trail of Time Dedication 0101013mq_0547
Grand Canyon NPS:
Grand Canyon Trail of Time Dedication 0101013mq_0554
Grand Canyon NPS:
Grand Canyon Trail of Time Dedication 0101013mq_0542
Grand Canyon NPS:
Grand Canyon Trail of Time Dedication 0101013mq_0532
Grand Canyon NPS:
Grand Canyon Trail of Time Dedication 0101013mq_0543
