EEGISTER OF LOCALITIES. 521 



2206. Durango quadrangle; Hermosa formation. Gypsum cliff. Chert from top of a stratum of 



shale. Hermosa Creek and Buck Hollow. 

 Whitman Cross, July 11, 1898. 



2207. Durango quadrangle; Hermosa formation. Just north of Tripps Gulch. Upper part of Hermosa 



formation. 

 Cross and Spencer, July 11, 1898. 



2208. Durango quadrangle; Hermosa formation. Just north of Tripps Gulch. Upper part of Her- 



m'osa formation. 

 Cross and Spencer, July 11, 1898. 



2209. Durango quadrangle; Hermosa formation. North side of Coon Creek. Lowest part of Hermosa 



formation, just above the Devonian. 

 A. C. Spencer, July 12, 1898. 



2210. Durango quadrangle; Hermosa formation. North of Stevens Creek. Upper part of Hermosa 



formation. 

 A.'C. Spencer, July, 1898. 



2211. Durango quadrangle; Hermosa formation. Cliff south of Carson Creek. Next fossiliferous 



layer above 2202. 

 A. C. Spencer, July, 1898. 



2212. Engineer Mountain quadrangle; Hermcsa formation. West side of Animas A'alley, near south 



edge of quadrangle. Heavy limestone series near middle part of formation. 

 A. C. Spencer, July, 1898. 

 221.3. Durango quadrangle; Plermosa formation. North side of Bear Creek. Very lowest part of 

 Hermosa formation, just above Devonian. Same horizon as 2209. 

 A. C. Spencer, July, 1898. 



2214. Durango quadrangle; Hermosa formation. North side of Bear Creek. Red limestone about 



25 to 35 feet above the principal ledge of the Devonian and below 2213. 

 A. C. Spencer, July, 1898. 



2215. Durango quadrangle; Hermosa formation. Exact locality not recorded. 



2216. Rico quadrangle; Hermosa formation. Sandstone Mountain. Black shale above heavy lime- 



stone series; base of upper third of the formation. 

 Whitman Cross, October 18, 1897. 



2217. Rico quadrangle; Hermosa formation. Sandstone Mountain. Middle part of Hermosa for- 



mation; heavy limestone series, about 150 feet below 2216. 

 Whitman Cross, October 19, 1897. 



2218. Rico quadrangle; Hermosa formation. Sandstone Mountain. Upper part of Hermosa forma- 



tion, a few feet above black shale of 2216. 

 Whitman Cross, October 19, 1897. 



2219. Rico quadrangle; Hermosa formation. South of Marguerite Draw. Upper part of Hermosa 



formation; black shale series, not so high as 2216. 

 Whitman Cross, October 20, 1897. 



2220. Rico quadrangle; Hermosa formation. Silver Creek, near Argentine shaft. Crinoidal lime- 



stone layer in heavy limestone series, middle part of Hermosa formation. 

 Whitman Cross, October 23, 1897. 



2221. Rico quadrangle; Hermosa formation. Same as 2218 

 Whitman Cross, October 19, 1897. 



