Keywords | Caution Clouds Colorado Communications Cumulus clouds Custer County Grassland Low clouds Nobody North America Prairie Rural scenes Sign Sky scenes Stop sign Traffic sign USA Westcliffe | Caption | Near Westcliffe, Colorado, USA --- Stop sign marking the entrance to main highway which is crossing vast arid grasslands, with blue sky and dramatic cumulus clouds above, fall, near Westcliffe, Colorado. --- Image by © Momatiuk - Eastcott/Corbis |