USGS Thesaurus

  1. F USE fluorine
  2. facilities (USGS) USE USGS facilities
  3. facility tours (USGS) USE USGS exhibits and facility tours
  4. fall (season) USE autumn
  5. false scorpions USE arachnids
  6. farming USE agriculture
  7. faulting (geologic)
  8. fauna USE animals
  9. faunal and floral census (microscopic)
  10. fax-on-demand (USGS) USE USGS fax-on-demand services
  11. Fe USE iron
  12. fermentation USE oxidation and reduction
  13. fermium
  14. ferns and fern allies
  15. field centers (USGS) USE USGS field centers
  16. field experiments
  17. field inventory and monitoring
  18. field methods
  19. field monitoring USE field inventory and monitoring
  20. field monitoring stations
  21. field observation USE field inventory and monitoring
  22. field sampling
  23. field stations USE field monitoring stations
  24. field trip guidebooks USE guidebooks
  25. fire control
  26. fire damage
  27. fire preparedness USE fires
  28. fire prevention USE fire control
  29. fires
  30. fires (controlled) USE controlled fires
  31. fires (uncontrolled) USE fires
  32. fish
  33. fish farming USE aquaculture
  34. fish inventories USE field sampling
  35. fishery management
  36. fishery resources
  37. fishes USE fish
  38. fishing (recreational) USE recreation
  39. fission-track dating
  40. fission-track method USE fission-track dating
  41. flatworms
  42. flood preparedness USE floods
  43. flood stage USE streamflow
  44. flooding (controlled) USE controlled flooding
  45. floods
  46. flora USE plants (organisms)
  47. flow cytometry
  48. flowering plants
  49. fluid dynamics USE hydrodynamics
  50. fluid migration USE ground-water flow
  51. fluorine
  52. fluvial processes USE streamflow
  53. flyways USE biogeography
  54. Fm USE fermium
  55. folding (geologic)
  56. foliation (geologic)
  57. food chain USE food web
  58. food cycle USE food web
  59. food web
  60. foraminifera USE protists
  61. foreign species USE nonindigenous species
  62. forest ecosystems
  63. forest resources
  64. forestry USE forest resources
  65. fossil fuels USE energy resources
  66. fossils
  67. Fr USE francium
  68. fractal geometric methods USE mathematical modeling
  69. fracture (geologic)
  70. francium
  71. free-air anomaly
  72. Frequently Asked Questions (FAQs) USE USGS customer support and user feedback
  73. freshwater (ground) USE ground water
  74. freshwater (surface) USE surface water (non-marine)
  75. freshwater ecosystems
  76. fumarolic activity USE volcanic gas emission
  77. fungi