Listed on the National Register of Historic Places in 1971.
From the record
“Redstone Castle, also known as Cleveholm or Osgood Castle, is a mansion south of Redstone, Colorado, United States. It is a large timber frame structure built in the early 20th century as the home of John C.”
Wikipedia article Redstone Castle, CC BY-SA 4.0.
One of 38 National Register listings published here for Pitkin County · listed in 1971 · category: Building.
National Register reference number.71000216- the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.
Fires near this property
14 since 1992
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 14 fires within 5 miles of Osgood Castle
between 1992 and 2020, burning about 5 acres in total. 5 started naturally. None was recorded as arson.
Distance is straight-line from the map coordinates, so a fire counted
here may appear on a neighbouring settlement's page as well.
Reported cause
Fires
Missing data/not specified/undetermined
8
Natural
5
Recreation and ceremony
1
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Regional context, not property-specific
evidence. The federal mineral resources record lists
8 workings within 5 miles of Osgood Castle: 5 past producers, 2 occurrences, 1 unknown.
None of them still produces. What was taken out: Lead, Oil Sands, Silver, Gold. Distance is straight-line from the
map coordinates, so a quarry counted here may appear on a neighbouring
settlement's page as well.
Regional context, not property-specific
evidence. The National Weather Service names
Redstone, the town this property stands in, in 35 storm reports between 1997 and 2025: 16 debris flow, 12 flash flood, 3 thunderstorm wind, 2 hail.
No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office
filed it, from the NOAA Storm Events Database, and each date
opens the federal record of that event.
Several mudslides occurred along Colorado Highway 133 near Redstone as a result of heavy rains. Debris depth was 7 to 8 feet with one slide and 3 to 4 feet deep with another. As a result, motorists were stranded until cleanup operations were complete.
Heavy rains resulted in a debris flow of mud, branches and rocks across Avalanche Creek Road. The road remained closed and impassable overnight before reopening the next morning.
Mudslides occurred on Colorado Highway 133 at Redstone Boulevard, 9 miles north of McClure Pass near mile marker 55. The highway was closed in both directions for almost twelve hours due to cleanup operations.
A debris flow of mud, rocks and trees occurred along Colorado Highway 133 north of Redstone as a result of heavy rains. The road was closed for several hours due to cleanup operations.
Mudslides occurred as a result of heavy rains along Colorado Highway 133 near Redstone and Swiss Village. The highway was closed for a couple of hours due to cleanup operations.
Heavy rain producing thunderstorms caused flash flooding across a forest service road between Highway 133 and the Avalanche Creek Campground. About 3 feet of debris was deposited on the road in the wake of the flash flood. Dozens of campers were stranded in the campground until the next day.
A mudslide occurred on Colorado Highway 133 near Redstone due to heavy rain which resulted in both lanes of traffic being closed due to cleanup operations.
A mudslide occurred on Highway 133 due to heavy rainfall from a thunderstorm at mile marker 59.5. Radar estimated that 0.7 to 1.4 inches of rain fell within the drainage above Highway 133. The mudslide was reported at 1530 MST.
Two rock/mud slides were reported on Highway 133, about 10 miles south of Carbondale, between mile-markers 60 and 63. The road was reported as passable but with mud and debris on the road as of approximately 10:20 AM MDT. Reports from the Colorado Department of Transportation. Road was not closed, but did require clean-up. No reports of injuries or fatalities were received.
Radar indicated heavy rain between 0300 and 0400 MST. This heavy rain caused multiple mudslides to occur around 0400 MST between Carbondale and Redstone along Highway 133 centered around mile marker 55.7. Another one occurred at mile marker 53 within this similar timeframe. One vehicle was stuck in the mudslide but not buried. No indication of how deep or wide the slide was but clean up took longer than usual due to the stuck vehicle. Road reopened in both directions at 0917 MST.
Multiple mudslides were reported by local law enforcement near Redstone, CO. These mudslides followed the Crystal River valley, along State Highway 133 near mile marker 53. This is roughly 1 mile north of Redstone. Slow storm motion, steep terrain, and heavy rain all combined in an area known to be susceptible to debris flows and mudslides. Highway 133 was closed for several hours for cleanup.
A strong thunderstorm produced heavy rainfall rates resulting in a large mudslide at Avalanche Ranch along Highway 133. There were other mudslides along Highway 133 between Redstone Blvd and Red Dog Rd about 4 miles north of Redstone. These mudslides resulted in Highway 133 being closed in both directions from mile markers 53 to 57.
A mudslide resulted in the closure of Colorado Highway 133 just north of Redstone at mile marker 55. The road opened to one lane later that morning before crews finished cleanup operations.
Showers and thunderstorms produced heavy rain which led to a mudslide along County Road 3 near Marble. The road was closed in both directions as a result.
Heavy rainfall from showers and thunderstorms led to rising waters which resulted in a mudslide at the confluence of the middle and lower Thompson Creek just outside of Carbondale.
Numerous mud slides up to a foot deep were reported north of Redstone due to heavy rainfall and runoff. Southbound lanes of Highway 133 were blocked for several hours as road crews removed the debris.
Highway 133 was closed for about 30 minutes due to flash flooding which deposited a large amount of debris onto the road at various locations between Redstone and McClure Pass.
Heavy rainfall resulted in a flash flood across a section of Highway 133 about six miles south of Carbondale. The flash flood deposited mud and debris up to three feet deep on the highway. Highway 133 was closed for nearly three hours due to this event.
Heavy rainfall resulted in a flash flood with a large amount of mud that flowed across Highway 133. When the flooding stopped, it left a deposit of mud on the Highway up to 4 feet deep. The highway was opened to traffic within two hours after the flash flooding ended.
Heavy rain washed rocks and debris out of bar ditches and onto Highway 133 in multiple locations along a three mile stretch of the road near McClure Pass.
No historic map-sheet match is published
for this property yet. That does not mean no map exists. This record needs
a coordinate-quality review before it can be joined to a sheet boundary.
Browse the county's mapped places while that work is
pending.
Listed places nearby
5 within 8 miles
Other National Register properties close
enough to walk or drive between, ordered by distance from this one. Both
positions come from the same geocoding pass that matched these properties
to their map sheets.
Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.
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