CAHighCalendar available · 42 events · Auto-updating
Mountain High — School Profile & District Info
High|Tuolomne, California|Summerville Union High
Tuolomne, CA 95379
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Upcoming Events
Aug
12
Wed
OrientationEvent
Aug
13
Thu
Teacher Buy Back DaysStaff Day
Aug
17
Mon
Staff WorkdayStaff Day
Aug
18
Tue
First Day of SchoolEvent
Confirm bus route and pickup time. Early dismissal may apply.
Sep
7
Mon
Labor Day HolidayHoliday
Banks, government offices, and schools may be closed.
Sep
12
Sat
End of Grading PeriodEvent
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School Profile
School Statistics
Academics (SY 2020-21)
Graduation Rate
S
District Finance (FY 2023)
Per-Pupil Spending
$16,114
District-level data
Funding Sources
Federal 3%State 51%Local 46%
Community Context
Median Home Value
$385,454
-4.4% YoY
Sonora, CA metro area · Zillow Feb 2026
Community Need Level
Elevated
CDC/ATSDR Social Vulnerability Index 2022
Enrollment Trend (2014-2025)
3
Current enrollment
Stable(+0% 5yr)Coming Up
Wed, Aug 12, 2026
Orientation
EventThu, Aug 13, 2026
Teacher Buy Back Days
Staff DayMon, Aug 17, 2026
Staff Workday
Staff DayFull School Calendar 2026-27
| Date | Event |
|---|---|
| Mon, Sep 7, 2026 | Labor Day Holiday |
| Sat, Sep 12, 2026 | End of Grading Period |
| Sat, Sep 12, 2026 | End of Grading period |
| Fri, Oct 16, 2026 | End of Grading Period |
| Wed, Nov 11, 2026 | Veterans Day Holiday |
| Mon, Nov 23, 2026 | Thanksgiving Recess |
| Wed, Dec 2, 2026 | Alt Ed. Graduation |
| Fri, Dec 4, 2026 | High School Graduation |
| Fri, Dec 18, 2026 | Minimum Day Schedule |
| Fri, Dec 18, 2026 | End of First Semester |
| Mon, Dec 21, 2026 | Winter Recess |
| Fri, Jan 1, 2027 | Winter Recess |
| Mon, Jan 4, 2027 | Teacher Workday |
| Tue, Jan 5, 2027 | School Resumes |
| Mon, Jan 18, 2027 | MLK Jr. Holiday |
| Mon, Feb 8, 2027 | Lincoln's Birthday |
| Mon, Feb 15, 2027 | President's Day |
| Wed, Feb 17, 2027 | Summerville Showcase |
| Fri, Mar 12, 2027 | End of Grading period |
| Fri, Mar 12, 2027 | End of Grading Period |
| Mon, Mar 29, 2027 | Spring Break |
| Thu, Apr 1, 2027 | Spring Break |
| Mon, Apr 5, 2027 | Possible Snow Make-Up |
| Mon, Apr 5, 2027 | Possible Snow Make-Up Day |
| Mon, Apr 5, 2027 | Possible Snow Make-up Day |
| Tue, May 25, 2027 | Minimum Days |
| Tue, May 25, 2027 | Memorial Day Holiday |
| Tue, May 25, 2027 | Senior Boards |
| Tue, May 25, 2027 | Minimum Day Schedule |
| Wed, May 26, 2027 | Minimum Day Schedule |
| Mon, May 31, 2027 | Memorial Day Holiday |
| Wed, Jun 2, 2027 | Alt Ed. Graduation |
| Thu, Jun 3, 2027 | Minimum Day Schedule |
| Thu, Jun 3, 2027 | Last Day of School |
| Fri, Jun 4, 2027 | Possible Snow Make-up Day |
| Fri, Jun 4, 2027 | High School Graduation |
| Fri, Jun 4, 2027 | Possible Snow Make-Up Day |
| Fri, Jun 4, 2027 | Possible Snow Make-up day |
Showing 38 events for the 2026-27 school year
Frequently Asked Questions about Mountain High
Enrollment at Mountain High stands at 2 students. The school is a High institution in the local district.
Calendar Guides
School profiles: Data from NCES Common Core of Data. Calendar events from district calendar sources, updated automatically.