Listed on the National Register of Historic Places in 2016.
“The Oltjenbruns Farm in Phillips County, Colorado near Amherst, Colorado, also known as Welper Farm, is a 160 acres (0.65 km2) farm which was listed on the National Register of Historic Places in 2016.”
Wikipedia article Oltjenbruns Farm, CC BY-SA 4.0.
One of 10 National Register listings published here for Phillips County · listed in 2016 · category: District.
Sources: the Wikipedia article · the National Register database, National Park Service
Regional context, not property-specific evidence. The federal wildfire occurrence database lists 10 fires within 5 miles of Oltjenbruns Farm between 2011 and 2017, burning about 7 acres in total. None 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 | 10 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 29 August 2011 | Missing data/not specified/undetermined | 1.0 acres | Colorado State Forest Service-State Headquarters | AMHERST |
| 5 July 2014 | Missing data/not specified/undetermined | under an acre | Holyoke Volunteer Fire Department | UNKNOWN |
| 5 July 2011 | Missing data/not specified/undetermined | 1.0 acres | Colorado State Forest Service-State Headquarters | AMHERST |
| 26 July 2011 | Missing data/not specified/undetermined | 1.0 acres | Colorado State Forest Service-State Headquarters | AMHERST |
| 17 July 2011 | Missing data/not specified/undetermined | 1.0 acres | Colorado State Forest Service-State Headquarters | AMHERST |
| 24 June 2011 | Missing data/not specified/undetermined | 1.0 acres | Colorado State Forest Service-State Headquarters | AMHERST |
| 23 June 2011 | Missing data/not specified/undetermined | 1.0 acres | Colorado State Forest Service-State Headquarters | AMHERST |
| 13 June 2016 | Missing data/not specified/undetermined | under an acre | Holyoke Volunteer Fire Department | UNKNOWN |
Regional context, not property-specific evidence. The National Weather Service names Amherst, the town this property stands in, in 61 storm reports between 1998 and 2025: 42 hail, 13 thunderstorm wind, 3 flash flood, 3 tornado. 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.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| June 2007 | Flash Flood | Amherst | $100,000 | no account filed |
| June 2010 | Flash Flood | Amherst | $25,000 | Heavy rain washed out sections of 20 country roads in Phillips County. |
| May 2025 | Thunderstorm Wind | Amherst | - | The report was from a Weatherlink weather station. |
| July 2024 | Hail | Amherst | - | The report was from mping. |
| June 2022 | Tornado (EFU) | Amherst | - | A landspout touched down in an open field; no damage was observed. |
| July 2020 | Tornado (EF0) | Amherst | - | A tornado touched down briefly near the intersection of CO 16 and CO 55. No damage was observed. |
| September 2019 | Hail | Amherst | - | Hail broke a windshield. |
| August 2019 | Thunderstorm Wind | Amherst | - | Intense straight-line winds flipped a mobile home and damaged an adjacent home. |
| July 2018 | Hail | Amherst | - | Large hail the size of baseballs broke windshields and damaged trees. |
| June 2010 | Thunderstorm Wind | Amherst | - | Damaging thunderstorm winds snapped 6 telephone poles off at the base. The poles were approximately 12 to 14 inches in diameter. In addition, the storm produced a measured 2.5 inches of rainfall. |
| June 2010 | Hail | Amherst | - | The severe thunderstorm also produced a wind gusts to 60 mph. Heavy rain was also observed, estimated between 3 and 4 inches. |
| May 2008 | Thunderstorm Wind | Amherst | - | A severe thunderstorm overturned an irrigation sprinkler. In addition, a 3-ton grain feeder was moved from the pasture to a barn. |
| March 2007 | Tornado (EF0) | Amherst | - | A small tornado touched down but did no damage. |
| July 1998 | Flash Flood | Amherst | - | Flash flooding forced the closure of U.S. Highway 385 south of Julesburg and State Highway 176 from Amherst northeast to the Nebraska border as over 3.5 inches of rain/3.61/ reportedly fell in the area. |
| May 2025 | Thunderstorm Wind | Amherst | - | no account filed |
| May 2023 | Hail | Amherst | - | no account filed |
| May 2023 | Hail | Amherst | - | no account filed |
| June 2022 | Hail | Amherst | - | no account filed |
| September 2019 | Hail | Amherst | - | no account filed |
| July 2018 | Thunderstorm Wind | Amherst | - | no account filed |
| July 2018 | Hail | Amherst | - | no account filed |
| July 2017 | Hail | Amherst | - | no account filed |
| June 2016 | Hail | Amherst | - | no account filed |
| June 2015 | Hail | Amherst | - | no account filed |
| June 2015 | Hail | Amherst | - | no account filed |
| June 2015 | Hail | Amherst | - | no account filed |
| June 2015 | Hail | Amherst | - | no account filed |
| April 2015 | Hail | Amherst | - | no account filed |
| April 2015 | Thunderstorm Wind | Amherst | - | no account filed |
| May 2013 | Hail | Amherst | - | no account filed |
| June 2011 | Hail | Amherst | - | no account filed |
| June 2011 | Hail | Amherst | - | no account filed |
| August 2011 | Hail | Amherst | - | no account filed |
| August 2011 | Hail | Amherst | - | no account filed |
| August 2011 | Hail | Amherst | - | no account filed |
| July 2010 | Thunderstorm Wind | Amherst | - | no account filed |
| July 2009 | Hail | Amherst | - | no account filed |
| July 2009 | Thunderstorm Wind | Amherst | - | no account filed |
| July 2009 | Hail | Amherst | - | no account filed |
| July 2009 | Hail | Amherst | - | no account filed |
| July 2009 | Hail | Amherst | - | no account filed |
| July 2009 | Hail | Amherst | - | no account filed |
| April 2008 | Hail | Amherst | - | no account filed |
| April 2008 | Hail | Amherst | - | no account filed |
| March 2007 | Hail | Amherst | - | no account filed |
| March 2007 | Hail | Amherst | - | no account filed |
| May 2007 | Hail | Amherst | - | no account filed |
| July 2007 | Hail | Amherst | - | no account filed |
| June 2004 | Hail | Amherst | - | no account filed |
| June 2004 | Thunderstorm Wind | Amherst | - | no account filed |
| June 2004 | Thunderstorm Wind | Amherst | - | no account filed |
| June 2004 | Thunderstorm Wind | Amherst | - | no account filed |
| June 2004 | Hail | Amherst | - | no account filed |
| June 2003 | Thunderstorm Wind | Amherst | - | no account filed |
| June 2001 | Hail | Amherst | - | no account filed |
| June 2001 | Hail | Amherst | - | no account filed |
| June 2001 | Hail | Amherst | - | no account filed |
| July 2001 | Hail | Amherst | - | no account filed |
| July 2001 | Hail | Amherst | - | no account filed |
| July 2001 | Hail | Amherst | - | no account filed |
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.
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.
| Photograph | Property | Distance | Listed |
|---|---|---|---|
| Reimer-Smith Oil Station | 7.3 miles | 2000 | |
 | Phillips County Courthouse | 7.4 miles | 2007 |
 | W. E. Heginbotham House | 7.6 miles | 1988 |
| National Archives record | The nomination case file for reference 15001011 in Record Group 79. |
| Wikipedia article | Community-written account of this property, licensed CC BY-SA. |
| Phillips County | All 10 listed properties in this county. |
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