1. African Rift Valley: http://en.wikipedia.org/wiki/File:Kilimanjaro_3D_- _version_1.gif

2. Kilimanjaro, 3 peaks: http://www.coolamonrotary.com/kili/archive/2007_03_01_arch ive.html

3. Kilimanjaro: http://www.touchthetop.com/education/seven- summits/kilimanjaro/

4. Kilimanjaro summit: http://jameselassiter.blogspot.com/2011/01/africa-beautiful- mt-kilimanjaro.html

5. Kilimanjaro, disappearing snow: http://en.wikipedia.org/wiki/File:Kilimanjaro_glacier_retreat.jpg

6. African Rift Valley: http://geology.com/articles/east-africa- rift.shtml

7. Really nice 3D map of north end of rift valley in Ethiopia: http://en.wikipedia.org/wiki/File:AfarDrape.jpg

8. Afar triple junction: http://geology.com/articles/east-africa- rift.shtml

9. African Rift Valley: http://en.wikipedia.org/wiki/File:EAfrica.gif

10. Lake Baringo, Kenya: http://www.discounttourskenya.com/hotel-guide/lake-baringo- bogoria-hotels/lake-baringo-country-club/

11. Lake Magadi, Kenya:

12. Mt. Elgon lava tubes, Uganda: http://www.namagembeadventuretravel.com/national- parks%20uganda/mount-elgon-national-park-uganda.html

13. Lake Bogoria, Kenya: http://en.wikipedia.org/wiki/File:Lake_Bogoria_WW_satellite_i mage.png

14. Lake Bogoria, Kenya: http://en.wikipedia.org/wiki/File:Lake_Bogoria_2011.jpg

15. Mara river crossing, kenya: http://www.trip-ideas.co.uk/a- kenya-wildlife-safari/

16. Murchison Falls, Uganda: http://africansafaris.co.ke/murchisonfalls.html

17. Mountains of the Moon, Uganda: http://kabiza.com/RwenzoriMountainspictures.htm

18. Lake Tanganyika: http://en.wikipedia.org/wiki/File:Lake_Tanganyika_map.png

19. Lake Tanganyika: http://en.wikipedia.org/wiki/File:Lake_tanganyika.jpg

20. Lake Kivu (Dem. Rep. of Congo/Rwanda): http://nthambazale.com/2010/09/lake-kivu-turning-an- exploding-lake-into-a-source-of-energy/

21. Lake Victoria, showing invasive water hyacinth: http://en.wikipedia.org/wiki/File:Africa_Lake_Victoria_10_006. jpg

22. Lake Victoria: http://en.wikipedia.org/wiki/File:Topography_of_Lake_Victoria. png

23. Lake Turkana, Kenya: http://www.modernhumanorigins.com/lake-turkana

24. Lake Malawi, Mozambique: http://www.mozambiqueaccommodation.co.za/mozambique_l ake-malawi_accommodation.html

25. Olduvai gorge: http://ncse.com/image/olduvai-gorge

26. Ngorongoro Crater: http://en.wikipedia.org/wiki/File:Ngorongoro_Crater_Panoram a.jpg

27. Ngorongoro crater: http://www.sciencephoto.com/media/75719/enlarge

28. Lake Baikal: http://en.wikipedia.org/wiki/File:Olchon1.jpg

29. Rio Grande RIft: http://igppweb.ucsd.edu/~fialko/research5- 6.html

30. Rhine Graben: http://en.wikipedia.org/wiki/File:Rhinegraben_sat.jpg

31. Midcontinent Rift System, gravity map: http://igppweb.ucsd.edu/~fialko/research5-6.html