Soil Survey of Crater Lake National Park, Oregon

Table of Contents

1. Soils That Are on Uplands and Formed in Airfall-Deposited Ash and Pumice

2. Lapine-Steiger (ponderosa pine/fir)

3. Timbercrater-Llaorock-Castlecrest (mountain hemlock)

4. Timbercrater-Castlecrest-Llaorock (Shasta red fir) Soils That Are in Valleys and Formed in Ash and Pumice Flow Deposits of Ash, Pumice, and Cinders

5. Maklak-Collier (ponderosa pine/fir with lodgepole pine)

6. Castlecrest-Umak (mountain hemlock with lodgepole pine)

7. Unionpeak-Castlecrest (mountain hemlock)

8. Castlecrest (Shasta red fir) Soils That Are on Uplands and Formed in Airfall-Deposited Ash and Pumice Over Glacial Deposits

9. Lapine-Oatman

10. Grousehill Soils on Cinder Cones

11. Redcone-Cinder land Soils on Alpine Meadows With Intermingled Forests

12. Cleetwood-Llaorock-Dyarock Soils in Seeps and on Stream Terraces

13. Stirfry-Mariel-Anniecreek

I. Introduction

1. Anniecreek-Stirfry-Riverwash complex, 0 to 2 percent slopes

2. Badland, 50 to 100 percent slopes

3. Badland-Stirfry complex, 0 to 70 percent slopes

4. Castlecrest gravelly ashy sandy loam, 2 to 10 percent slopes

5. Castlecrest ashy loamy sand, dry, 0 to 15 percent slopes

6. Castlecrest ashy loamy sand, low, 0 to 7 percent slopes

7. Castlecrest gravelly ashy loamy sand, high elevation, 5 to 45 percent slopes

8. Castlecrest-Badland complex, 60 to 100 percent slopes

9. Castlecrest-Llaorock complex, 2 to 25 percent slopes

10. Castlecrest-Sunnotch complex, 5 to 45 percent slopes

11. Cleetwood gravelly ashy loamy coarse sand, depressional, 0 to 7 percent slopes

12. Cleetwood-Castlecrest complex, dry, 10 to 30 percent slopes

13. Cleetwood-Castlecrest-Llaorock complex, 5 to 30 percent slopes

14. Cleetwood, thin surface-Cleetwood-Dyarock complex, 2 to 20 percent slopes

15. Cleetwood, thin surface-Llaorock-Cleetwood complex, 5 to 30 percent slopes

16. Cleetwood-Sunnotch-Castlecrest complex, high elevation, 15 to 30 percent slopes

17. Collier ashy loamy sand, 0 to 7 percent slopes

18. Collier ashy loamy sand, dry, 0 to 10 percent slopes

19. Collier very gravelly ashy loamy sand, low, 0 to 7 percent slopes

20. Collier-Badland complex, 60 to 100 percent slopes

21. Donegan very gravelly ashy sandy loam, 30 to 65 percent south slopes

22. Grousehill gravelly medial loam, 0 to 25 percent slopes

23. Grousehill-Llaorock complex, 5 to 35 percent slopes

24. Grousehill-Llaorock complex, dry, 0 to 30 percent slopes

25. Grousehill-Racing complex, 0 to 5 percent slopes

26. Lapine paragravelly ashy loamy coarse sand, 10 to 35 percent south slopes

27. Lapine paragravelly ashy loamy coarse sand, 35 to 55 percent south slopes

28. Lapine-Oatman complex, 5 to 30 percent slopes

29. Lapine-Oatman complex, 30 to 60 percent south slopes

30. Lapine-Rock outcrop-Wuksi complex, 30 to 70 percent south slopes

31. Lapine-Steiger-Wuksi complex, high elevation, 2 to 25 percent slopes

32. Lapine-Wuksi-Rock outcrop complex, 30 to 70 percent north slopes

33. Lava flows, 0 to 15 percent slopes

34. Llaorock-Castlecrest complex, 0 to 15 percent slopes

35. Llaorock-Castlecrest complex, 15 to 30 percent slopes

36. Llaorock-Castlecrest-Rock outcrop complex, 30 to 60 percent north slopes

37. Llaorock-Castlecrest-Rock outcrop complex, 30 to 60 percent south slopes

38. Llaorock-Rubble land-Rock outcrop complex, 60 to 90 percent north slopes

39. Llaorock-Rubble land-Rock outcrop complex, 60 to 90 percent south slopes

40. Llaorock-Timbercrater-Rubble land complex, dry, 60 to 90 percent south slopes

41. Maklak paragravelly ashy loamy sand, 0 to 10 percent slopes

42. Maklak paragravelly ashy loamy sand, low, 0 to 10 percent slopes

43. Maklak paragravelly ashy loamy sand, high precipitation, 0 to 10 percent slopes

44. Mariel-Stirfry complex, 0 to 3 percent slopes

45. Redcone-Cinder land complex, 30 to 60 percent south slopes

46. Redcone-Rock outcrop complex, 30 to 60 percent north slopes

47. Rock outcrop-Rubble land complex, 60 to 90 percent slopes

48. Stirfry mucky peat, 0 to 7 percent slopes

49. Stirfry-Grousehill complex, 0 to 10 percent slopes

50. Sunnotch gravelly ashy sandy loam, dry, 0 to 35 percent slopes

51. Sunnotch-Unionpeak complex, 15 to 35 percent slopes

52. Timbercrater paragravelly ashy loamy sand, dry, 25 to 60 percent north slopes

53. Timbercrater-Castlecrest complex, 0 to 10 percent slopes

54. Timbercrater-Castlecrest complex, dry, 2 to 15 percent slopes

55. Timbercrater-Castlecrest complex, dry, 15 to 30 percent south slopes

56. Timbercrater-Castlecrest-Llaorock complex, 10 to 30 percent south slopes

57. Timbercrater-Llaorock complex, 10 to 30 percent north slopes

58. Timbercrater-Llaorock complex, dry, 30 to 60 percent south slopes

59. Timbercrater-Llaorock complex, high elevation, 30 to 80 percent slopes

60. Timbercrater-Llaorock-Castlecrest complex, 30 to 60 percent slopes

61. Timbercrater-Sunnotch-Castlecrest complex, 0 to 10 percent slopes

62. Umak paragravelly ashy fine sandy loam, 0 to 7 percent slopes

63. Umak paragravelly ashy fine sandy loam, dry, 0 to 10 percent slopes

64. Umak paragravelly ashy fine sandy loam, low, 0 to 5 percent slopes

65. Unionpeak-Castlecrest complex, dry, 5 to 15 percent slopes

66. Unionpeak-Castlecrest-Llaorock complex, 15 to 30 percent slopes

67. Unionpeak-Castlecrest-Sunnotch complex, 0 to 15 percent slopes

68. Water

• Interpretive Ratings

•     Rating Class Terms

•     Numerical Ratings

• Ecological Sites

• Vegetation

•     Alpine Meadows with Intermingled Forests

•     Wetlands with Intermingled Forests

•     Whitebark Pine

•     Mountain Hemlock

•     Shasta Red Fir

•     Ponderosa Pine/Fir

•     Lodgepole Pine

•     Douglas Fir

• Rangeland

•     Plant Community Dynamics

•     Characteristics That Affect Management

• Wildlife Habitat

• Forest Productivity and Management

• Recreation

• Engineering

• Building Site Development

• Sanitary Facilities

I. Introduction

• Engineering Index Properties

• Physical Properties

• Chemical Properties

• Water Features

• Soil Features

• Anniecreek Series

• Castlecrest Series

• Cleetwood Series

• Collier Series

• Donegan Series

• Dyarock Series

• Grousehill Series

• Lapine Series

• Llaorock Series

• Maklak Series

• Mariel Series

• Oatman Series

• Racing Series

• Redcone Series

• Steiger Series

• Stirfry Series

• Sunnotch Series

• Timbercrater Series

• Umak Series

• Unionpeak Series

• Wuksi Series

• Time

• Climate

• Parent Material

• Relief

• Living Organisms

• Table 1.—Temperature and Precipitation

• Table 2.—Freeze Dates in Spring and Fall

• Table 3.—Growing Season

• Table 4.—Acreage and Proportionate Extent of the Soils

• Table 5.—Ecological Sites and Characteristic Plant Communities

• Table 6.—Forestland Overstory Characteristic Plant Communities

• Table 7.—Forestland Management

• Table 8.—Forestland Management

• Table 9.—Forestland Management

• Table 10.—Forestland Management

• Table 11.—Forestland Management

• Table 12.—Recreation

• Table 13.—Building Site Development

• Table 14.—Building Site Development

• Table 15.—Sanitary Facilities

• Table 16.—Sanitary Facilities

• Table 17.—Engineering Index Properties

• Table 18.—Physical Properties of the Soils

• Table 19.—Chemical Properties of the Soils

• Table 20.—Water Features

• Table 21.—Soil Features

• Table 22.—Classification of the Soils