|
Salt Works Ranch
|
No
|
|
|
|
San Acacio Mission
|
No
|
|
|
|
San Isabel National Forest
|
No
|
|
|
|
San Juan County
|
No
|
|
|
|
San Juan County on Google Map
|
No
|
|
|
|
San Miguel County
|
No
|
|
|
|
San Miguel County
|
No
|
|
|
|
San Miguel County Courthouse
|
No
|
|
|
|
Sand Creek Massacre Site
|
No
|
|
|
|
Santa Fe Trail Ruts in Kansas
|
No
|
|
|
|
Sarah Platt Decker
|
No
|
|
|
|
SARS-CoV-2 under electron microscope
|
No
|
|
|
|
Schwachheim and Brown at the Folsom Site
|
No
|
|
|
|
Second Broadmoor Casino
|
No
|
|
|
|
Second Julesburg
|
No
|
|
|
|
Sedgwick County
|
No
|
|
|
|
See Six States
|
No
|
|
|
|
Settlers
|
No
|
|
|
|
Seventeen Mile House Today
|
No
|
|
|
|
Severe Erosion in Pike National Forest
|
No
|
|
|
|
Shenandoah-Dives Mill
|
No
|
|
|
|
Shipping Yard
|
No
|
|
|
|
Shorter Community African Methodist Episcopal Church
|
No
|
|
|
|
Shrine Pass
|
No
|
|
|
|
Signing of the Brunot Agreement, 1873
|
No
|
|
|
|
Silver Dollar Lake Trail
|
No
|
|
|
|
Silver Plume
|
No
|
|
|
|
Silverton
|
No
|
|
|
|
Silverton Depot
|
No
|
|
|
|
Silverton Today
|
No
|
|
|
|
Silverton, 1885
|
No
|
|
|
|
Silvia Pettem
|
No
|
|
|
|
Sixteenth Street Mall
|
No
|
|
|
|
Skate park in La Junta City Park
|
No
|
|
|
|
Ski Jumping at Howelsen Hill
|
No
|
|
|
|
Ski Practice at Camp Hale
|
No
|
|
|
|
Smoke Cloud, Black Forest Fire
|
No
|
|
|
|
Smoke Plume From East Troublesome Fire
|
No
|
|
|
|
Smuggler-Union Hydroelectric Power Plant
|
Yes
|
|
|
|
Smuggler-Union Hydroelectric Power Plant
|
No
|
|
|
|
Snow water equivalent and streamflow
|
No
|
|
|
|
Snowmastodon Sculture
|
No
|
|
|
|
Snowshoeing by Breckenridge
|
No
|
|
|
|
Soldiers' and Sailors' Home
|
No
|
|
|
|
Sopris Phase House
|
No
|
|
|
|
Sopris Phase Map
|
No
|
|
|
|
South Canyon Fire
|
No
|
|
|
|
South Platte River
|
No
|
|
|
|
South Valley
|
No
|
|
|
|
South Valley Rock Outcrops
|
No
|
|
|
|
Southeast facing arc in South Park
|
No
|
|
|
|
Southern Utes
|
No
|
|
|
|
Spa Building Before Rehabilitation
|
No
|
|
|
|
Spa Building Rotunda
|
No
|
|
|
|
Spa Building Today
|
No
|
|
|
|
Spanish Peaks
|
No
|
|
|
|
Speer Boulevard
|
No
|
|
|
|
Spencer Penrose
|
No
|
|
|
|
Spring House
|
No
|
|
|
|
Spring in Clear Creek Canyon
|
No
|
|
|
|
Spruce Tree House
|
No
|
|
|
|
Spruce Tree House
|
No
|
|
|
|
Spruce Tree House and Alcove
|
No
|
|
|
|
Spruce Tree House Before Excavation
|
No
|
|
|
|
Spruce Tree House Interior
|
No
|
|
|
|
Square Dancing on Sixteenth Street, Denver
|
No
|
|
|
|
Square Top Lakes Trail
|
No
|
|
|
|
St. Elmo Historic Buildings
|
No
|
|
|
|
St. Elmo Historic District
|
No
|
|
|
|
St. Elmo Town Hall
|
No
|
|
|
|
St. Frances Cabrini
|
No
|
|
|
|
St. Vrain Supply Canal
|
No
|
|
|
|
Stagecoach Ride
|
No
|
|
|
|
Stained-glass Doors
|
No
|
|
|
|
Staking Out a Homestead
|
No
|
|
|
|
Standing Portrait, Minnie Reynolds
|
No
|
|
|
|
Stanley Hotel Today
|
No
|
|
|
|
Stanley Hotel, 1909
|
No
|
|
|
|
Stanley/Paddington School, Montclair
|
No
|
|
|
|
Stapleton Airport
|
No
|
|
|
|
State Fair Exhibits
|
No
|
|
|
|
State Flag
|
No
|
|
|
|
Statue of Zebulon Pike in front of Antlers Hotel
|
No
|
|
|
|
Staunton Ranch Landscape
|
No
|
|
|
|
Steam Rising from Pagosa Hot Spring
|
No
|
|
|
|
Steamboat Ski Resort
|
No
|
|
|
|
Steamboat Ski Resort
|
No
|
|
|
|
Stockade and Sierro del Ojito
|
No
|
|
|
|
Stony Pass Road
|
No
|
|
|
|
Storage cists
|
No
|
|
|
|
Stranges Grocery Today
|
No
|
|
|
|
Strike
|
No
|
|
|
|
Student Outreach
|
No
|
|
|
|
Sugar Beet Field
|
No
|
|
|
|
Sugar Beet Harvest
|
No
|
|
|
|
Sugar beet loading
|
No
|
|
|
|
Summit County
|
No
|
|
|
|
Summit County on Google Map
|
No
|
|
|
|
Summit Lake
|
No
|
|
|
|
Summit Lake
|
No
|
|
|