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National Monument · Fossil Butte National Monument

Fossil Butte National Monument

Best primary window for Fossil Butte: July, with August and September as strong shoulder months.

In the ridges of southwest Wyoming are some of the best-preserved fossils in the world. They tell the story of ancient life in a warm, wet environment in and around a freshwater lake. Stingrays swam in the lake. Turtles basked in the sun. Leaves rustled in the breeze while early horses darted between the trunks. We reveal more of the past with each fossil found.

This page identifies Fossil Butte National Monument from the checked-in NPS snapshot, dated source cards, and the month windows listed here.

TI
Targeted Impressions Data TeamData Science & Intelligence
materializedData snapshot: October 27, 20264 source cards

Answer Brief

Answer-first planning signal

Best current use
Fossil Butte National Monument is listed as a National Monument in the checked-in NPS identity snapshot.
Best months
July, August, September
Peak crowd months
July, August, June
Current signal
Fossil Butte National Monument is listed as a National Monument in WY in the checked-in NPS identity snapshot. 4 source cards on this page. Data snapshot: October 27, 2026. Official NPS page: https://www.nps.gov/fobu/index.htm.
Visitor takeaway
Month windows for Fossil Butte National Monument are listed on this page. Official NPS page: https://www.nps.gov/fobu/index.htm.
What it sounds like
Fossil Butte audio on this page is a labeled modeled cue, not a field recording.

Summary at a glance

Fossil Butte National Monument is listed as a National Monument in the checked-in NPS identity snapshot. 4 source cards on this page. Data snapshot: October 27, 2026. Listed month windows: July, August, and September.

Best Months
July
↑ August, September
Budget Months
September
October, May
Peak Crowd
July
August, June
Region
rocky mountain
Core Experiences
schools-and-educationfossils-and-paleontologygeologyHikingJunior Ranger ProgramWildlife WatchingBirdwatchingMuseum Exhibits

Month-by-month

Month windows on this page: July, August, and September listed as the primary window; July, August, and June listed as peak months; September, October, and May listed as lower-crowd months.

Primary Window

Listed primary window: July, August, and September.

Peak months

Listed peak months: July, August, and June.

Lower-crowd months

Listed lower-crowd months: September, October, and May.

Getting there

Use the closest major airport and a regional drive plan for Fossil Butte.

By car: Travel 9 miles west of Kemmerer, Wyoming on U.S. Highway 30. There is a highway sign near mile post 44; turn right onto Lincoln County Road 300. The Historic Quarry Trail is approximately 1/2 mile on the right. Continue west on County Road 300 for approximately 1.5 miles to Chicken Creek Road which provides access to the visitor center, scenic drive, Nature Trail and picnic area. Closest airports: Rock Springs, Wyoming (130 miles); Salt Lake City, Utah (150 miles).

Place instrument

Clock, compare, and listen

Compare places

Season and now

Twelve-month planning is modeled from the published seasonal profile. The current hand stays unavailable until sourced alerts, hours, events, roads, and weather are fresh.

Current hand
Not available

Three listening lanes

Official NPS audio: Not provided for this snapshot.

Synthetic browser audio, never a field recording or live observation.

Jamcorder: Shared station.

Text equivalent for the seasonal place clock
MonthVisitabilityCrowd pressure
January4112
February4312
March4816
April5328
May5746
June5772
July6090
August6086
September5970
October5738
November5018
December4312

The cue is a browser-generated composition, not a field recording. How NPS Sounds modeled audio works.

Methodology

This page uses the checked-in NPS identity snapshot for Fossil Butte National Monument, the 4 source cards below, and the figures listed above. Data snapshot: October 27, 2026. Read the NPS Sounds methodology and about NPS Sounds for how pages are assembled.

  • Data snapshot: October 27, 2026
  • Source cards: 4

Data Behind This Reading

Source provenance

NPS identity

high

Fossil Butte National Monument is identified as National Monument with NPS code fobu.

Available · Data snapshot: October 27, 2026

Source

Official operations

limited

Official alerts should be verified on the NPS page. This site uses a checked-in snapshot, not a live operations feed.

From the data snapshot · Data snapshot: October 27, 2026

Source

Weather and seasonality

limited

Expect a variety of weather conditions no matter what time of year you visit. Spring, fall and winter can be very cold with snow and icy conditions. In spring, daytime temperatures usually range from 30 F to 65 F. Summer daytime temperatures range from 60 F to 90 F. Fall daytime temperatures range from 45 F to 70 F. Winter daytime temperatures range from -20 F to 30 F.

Modeled · Data snapshot: October 27, 2026

Source

How this page is assembled

limited

place page source cards come from the data snapshot October 27, 2026.

Data snapshot: October 27, 2026

Source

Where Fossil Butte National Monument fits

State, region, and designation hubs that list this place.

More Rocky Mountain visit guides

Other source-reviewed places in the same region.