[Mile-marker 4]
Just around the curve to the right is a T-intersection from which paved
South Camp Road leads south to a growing suburban area; and 2½ miles to
the southeast it connects with Monument Road at a point only half a mile
north of the East Entrance of the Monument.
Excellent views of the cliffs of dark Proterozoic rocks, the overlying
cliffs of the Wingate Sandstone, and the Redlands fault along the
northeastern border of the Monument are seen all along South Broadway,
but views from South Camp Road and several connecting roads to the
southwest are especially good. (See figs. 37 and 38.) As noted earlier,
the Redlands fault has a maximum vertical displacement of 700 or 800
feet, but dies out in scissors fashion at each end.
[Illustration: REDLANDS FAULT, looking west from South Camp Road
about one mile south of South Broadway. Fault here is nearly
vertical and normal, and lies between updragged Wingate Sandstone
and dark Proterozoic schist, gneiss, and granite. All or most of the
soft Chinle Formation has been squeezed out along the fault. Note
smooth erosion surface atop hard, dark rocks surmounted by slope of
red Chinle Formation and cliffs of Wingate Sandstone capped by
lowermost resistant beds of Kayenta Formation. (Fig. 37)]
_BRACHIOSAURUS_ MONUMENT
[Mile-marker 5]
As we continue westward on South Broadway, note on the right the
brightly colored mudstone and siltstone of the Brushy Basin Member of
the Morrison Formation strewn with large blocks of rusty-looking
sandstone from the Burro Canyon Formation, which caps the high ridge on
the right. Just above the deep cut on the right four-tenths of a mile
west of the intersection with South Camp Road is a bronze plaque set in
a masonry monument, whose lettering is easily readable in figure 39.
Many years after the excavation in 1900 (fig. 22), Elmer Riggs contacted
Al Look, of Grand Junction, in regard to the casting and erection of
this plaque. Al, Elmer, Ed Faber, and a few other citizens put up the
necessary funds and personally erected the plaque and monument. Somehow
or other, _Brachiosaurus_ was misspelled _Brachyosaurus_, as shown in
figure 39, but the intentions were good. Later I will call attention to
another similar monument commemorating the finding by Riggs of another
dinosaur skeleton.
[Illustration: CLOSEUP OF UPDRAGGED WINGATE SANDSTONE ALONG REDLANDS
FAULT, looking northwest from side road 1½ miles southwest of
intersection of South Camp Road and South Broadway. White “pimple”
atop cliff near left skyline is Liberty Cap, an erosional remnant of
the Wingate Sandstone, reachable via the Liberty Cap Trail (fig. 3;
and p. 108). Chinle Formation here was largely squeezed out along
the fault. (Fig. 38)]