From introduction: From the time of the publication of the Leadville monograph 2 by the United States Geological Survey, in 1886, the general geology and stratigraphy of the Mosquito Range around the Leadville and Alma districts have been known. In the recent resurvey of the area, however, it has been found necessary to undertake much more detailed studies of most of the formations. In particular, the sediments of Pennsylvanian age and the overlying red beds have received considerable attention and thought. This study was necessary to determine the amount of displacement along some of the notable faults and the depth to older strata that had contained valuable ore deposits in the larger mining districts. In some places the outcrops appear to have been improperly correlated in the older reports. These were given additional study, and considerable revision of stratigraphic sections has been necessary.

From introduction: This paper describes a small fossil flora from the vicinity of Leadville, central Colorado. The beds from which the flora was collected have long been referred to as the "Weber formation ", though with considerable doubt on the part of many geologists that all the beds so named in Colorado are correlative with the Weber quartzite of northeastern Utah. In current usage these Colorado beds are designated the " Weber (?) formation."

Postcard of a multistory brick building on a busy street, described further on the back as "Hotel Cosmopolitan Denver, Colorado 460 Rooms with Bath, Opened June 5, 1926. The largest and finest hotel in the State. One bock from all car lines. The leading hotel of Denver." The message on the front and back of the postcard is illegible. The postcard is addressed to "Mrs. Carroll E. Ward Texas Ice Co. Beaumont, Texas."

Newspaper clipping regarding the efficiency of the Colorado Legislature which planned its legislative program in advance. A short commentary is typed above the clipping.

A photograph print showing the Chicago, Rock Island & Pacific (CRIP, RI, or ROCK) 863, 4-6-2 (class P-31), on passenger train, Denver, CO.

A photograph print of the Colorado & Southern (C&S) narrow gauge Colorado & Southern (CS) coach #74, narrow gauge, at Solitude (Wheeler) water tank. [see also 2008.008.6685 - 8 years later]

A photograph print showing Colorado & Southern (C&S) 629, 2-8-0 (Brooks), narrow gauge, coaling tower in background, Denver, CO. [see also 2008.008.3393]

A photograph postcard showing Santa Fe (ATSF) 552, 4-4-2 , on No. 11, "Colorado Flyer", north of La Junta, CO, 40 mph.

A photograph postcard showing Santa Fe (ATSF) 903, 2-10-2, on No. 19, "The Chief", climbing 3.7% grade, west of Raton Pass, CO.

A photograph postcard showing Santa Fe (ATSF) 1491, 4-4-2, on train No. 66, Pueblo to La Junta, CO, north of La Junta, two cars.

A photograph postcard showing the Santa Fe 3751, 4-8-4, on passenger Train No. 6, (Pueblo to Denver), coming into Denver, CO.

A photograph print showing Santa Fe tunnels at top of Raton Pass, highest point on ATSF mainline (Chicago-California), elevation 7622 feet above seal level, looking south.

A photograph print showing Colorado & Southern (C&S) 5, 2-6-0, narrow gauge, on passenger train, Como, CO. (Note: crosses highest railroad mountain pass in the USA.)

A photograph print showing Colorado & Southern (C&S) 5, 2-6-0, narrow gauge, Como, CO. (Note: Same as 2008.008.3335 with background and workers removed.)

A photograph postcard showing Colorado & Southern (C&S) 68, 2-8-0, Denver, CO.

A photograph print showing Denver & Rio Grande Western (DRGW) 644, 2-8-0 (BLW, class C-28), used in switching service at Leadville. CO.

A photograph print showing Denver & Salt Lake (D&SL) 303, 4-6-0 (Alco), Denver, CO.