BLM · California

Milpitas Wash Wilderness

The Milpitas Wash Wilderness is near the southern end of the Mule Mountains and the Opal Hill Mine. The landscape is primarily desert mountain foothills as well as wash and floodplain habitats. Visitors...

Description from Wilderness Connect (wilderness.net), where the full text continues.

Official page at Wilderness Connect ↗
Milpitas Wash Wilderness
Photo from Wilderness Connect, wilderness.net
DesignationWilderness
Managed byBureau of Land Management
StateCalifornia
Size17,250 acres (Wilderness Connect)
Designated2019, by Congress
Center point33.2790, -114.8755
Night skyVery dark ground, a faint glow at most (Black Marble reading 32)

Boundary map

1 outline

Boundary, simplified to about 0.005 degrees Federal campground

The outline is the agency boundary simplified for display, so small parcels and inholdings may not show. The agency page has the authoritative map.

Weather by month

NOAA climate normals →
Weather by month near Milpitas Wash Wilderness50°60°70°80°90°100°January: 0.53 inches of precipitationFebruary: 0.62 inches of precipitationMarch: 0.48 inches of precipitationApril: 0.09 inches of precipitationMay: 0.05 inches of precipitationJune: 0.01 inches of precipitationJuly: 0.26 inches of precipitationAugust: 0.40 inches of precipitationSeptember: 0.32 inches of precipitationOctober: 0.16 inches of precipitationNovember: 0.21 inches of precipitationDecember: 0.43 inches of precipitationJanFebMarAprMayJunJulAugSepOctNovDecJanuary: 55.7°F averageFebruary: 59.3°F averageMarch: 65.6°F averageApril: 72.1°F averageMay: 80.3°F averageJune: 89.2°F averageJuly: 95.0°F averageAugust: 94.7°F averageSeptember: 88.0°F averageOctober: 75.4°F averageNovember: 62.9°F averageDecember: 54.0°F average0 in0.5 in1 inTemp °FInches
The line is the average temperature and the bars are average precipitation at Blythe AP, 25 miles from the center point at 395 feet, station USW00023158 in the NOAA monthly climate normals for 1991 to 2020. Precipitation totals about 4 inches a year.

Large units span more than one climate. The station stands in for the center point, and the outer parts of the boundary can be warmer or colder.

Where to camp

Campsite Atlas →

No federal campground sits inside the boundary. 1 is within ten miles of it. Nearest first. Distances are from the campground point to the boundary edge, from the Campsite Atlas index.

Reference

Questions people ask

How big is Milpitas Wash Wilderness?

17,250 acres.

Source: Wilderness Connect

Who manages Milpitas Wash Wilderness?

The Bureau of Land Management.

Source: Wilderness Connect

What state is Milpitas Wash Wilderness in?

California.

Source: Wilderness Connect

When was Milpitas Wash Wilderness designated?

Congress designated it in 2019.

Source: Wilderness Connect

Can I camp at Milpitas Wash Wilderness?

No federal campground sits inside the boundary. The nearest is Coon Hollow Campground, 7.4 miles out. 1 in all are within ten miles. Camping inside a wilderness is usually allowed away from roads, with no facilities; the managing agency page has the permit rules.

Source: Where to camp

How do I get to Milpitas Wash Wilderness?

A point inside the boundary is at 33.279, -114.876. The official page carries directions and the office address.

Source: Wilderness Connect

How dark is the night sky at Milpitas Wash Wilderness?

NASA’s Black Marble night-lights image reads 32 on a 0 to 255 scale at the center point, very dark ground, a faint glow at most.

Source: NASA Black Marble

Sources

  • Boundary, name, acreage, designation year, states and description: Wilderness Connect.
  • Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
  • Trailheads and sites: the Forest Service Recreation Opportunities layer, points inside the boundary.
  • Night sky: NASA Black Marble (VIIRS, 2016 composite) sampled at zoom 6 around the center point.
  • Weather, alerts, air quality, river flow and earthquakes load live in your browser from NWS, AirNow, USGS and iNaturalist when you open the page.