Markus Gretzschel

Lehrer für Mathematik / Physik / Informatik

November 2025

10. Juli - Rocky Mountain National Park

10. Juli - Rocky Mountain National Park - Trail Ridge Pass

10. Juli - Rocky Mountain National Park - Trail Ridge Pass

11. Juli - Blick aus den Big Horn Mountains

11. Juli - Big Horn Mountains - An den Shell Falls

12. Juli - Yellowstone National Park - Lower Falls am Artist Point

12. Juli - Yellowstone National Park - Sinter Terrassen

12. Juli - Yellowstone National Park - Snake River

13. Juli - Grand Teton National Park

13. Juli - Grand Teton National Park - Jenny Lake