Pacific Creek, 246. Pacific Fur Co., 34. Paintpots described, 174. on west shore Y. Lake, 242. Peale, A. C., quoted, 13, 323, 344. work of, in Y. N. P., 361, 363. Pearl Geyser, 220. Pend d'Oreilles Indians in geyser basins, 14, 45. Peterson, W., member of Folsom party, 73. Petrifactions in Y. N. P., Bridger's story, 56. perfection of, 179. Pfister, Frederick, member of Helena tourist party, 112. Phillips, W. H., connection of, with Y. N. P., 281. Photography of Grand Cañon, 256. _Pierre Janne._ See _Roche Janne_. Pierre's Hole, 24. Pike, Z. M., gives Spanish translation of _Pierre Janne_, 5. Pine, prevalence of, in Y. N. P., 188. Pine tree inscribed with date 1819, 40, 251. Pitchstone Plateau, 153. Plateaus of the Y. N. P., 153. Platte River, 188. Poe, General O. M., 105. quoted, 287. Pompey's Pillar, 5. Potts, companion of Colter, 29. Precedent, effect of, upon future of Y. N. P, 284. Presidential Party of 1883, 107, 371. Prismatic Lake, 227. Private interests and Y. N. P., 280. Prospecting expeditions in the Upper Y., 7, 66-71. Prospectors, unknown, slain by Nez Percés, 121. Protection of game, 181, 207. Protective Act, Y. N. P., 110, 141. Public business in Y. N. P., 139. Pulpit Terrace, 214. Punch bowl, 230. Pryor's Fork, 22. Pryor's Gap, 23, 24. Quadrant Mountain, 217. Quiescent Springs, 172-3. Radersburg tourist party, 1877, 112. experiences of, with Nez Percés, 117-120. Railroads and the Y. N. P., 133, 270-6, 280, 365. Rapids of the Y. River, 251. Raymond, R. W., quoted, 6. Raynolds, Captain W. F., expedition of, 58, 59, 101. map of, 62. quoted, 60, 61, 62. report of, 63. Red Mountain Range, 152. Rendezvous in the fur trade, 36. Reservoir, Y. Lake as a, 190. Rhyolitic rocks in Y. N. P., 157. "River of the West," 42. quoted from, 42, 317. River sources in and near Y. N. P., 188. Riverside Geyser, 229. Road system of the Y. N. P., 140, 201-7. Roberts, Joseph, member of Helena tourist party, 112. _Roche Janne_, French name for Y. River, 2, 3, 7. Rocky Mountains ascended by De La Verendrye, 4. Rocky Mountain Fur Company sketch, of, 36, 38. territory of, 36, 37. Routes from the east to the Pacific Coast, 100. Rules and Regulations for the Y. N. P., 354. Rustic Falls, 215. Rustic Geyser, old logs around, 13, 243.